{"product_id":"sewtech-size-l-sa155-prewound-bobbins-70d-2-60wt-white-polyester-bobbin-thread-144-pack","title":"Sewtech Size L (SA155) Prewound Bobbins, 70D\/2 60WT White Polyester Bobbin Thread, 144 pcs","description":"\u003cstyle\u003e\n  .sewtech-bobbin {\n    --green: #087b45;\n    --green-dark: #075833;\n    --ink: #17201c;\n    --muted: #5e6862;\n    --cream: #f7f3eb;\n    --line: #dfe7e2;\n    max-width: 1200px;\n    margin: 0 auto;\n    color: var(--ink);\n    font-family: Arial, Helvetica, sans-serif;\n    line-height: 1.55;\n  }\n  .sewtech-bobbin * { box-sizing: border-box; }\n  .sewtech-bobbin img {\n    display: block;\n    width: 100%;\n    height: auto;\n    border-radius: 20px;\n  }\n  .sb-hero {\n    display: grid;\n    grid-template-columns: 1.08fr .92fr;\n    align-items: center;\n    gap: clamp(28px, 5vw, 72px);\n    padding: clamp(28px, 5vw, 72px);\n    background: linear-gradient(135deg, #f7faf8, #edf6f0);\n    border-radius: 28px;\n    overflow: hidden;\n  }\n  .sb-eyebrow {\n    margin: 0 0 12px;\n    color: var(--green);\n    font-size: 13px;\n    font-weight: 800;\n    letter-spacing: .14em;\n    text-transform: uppercase;\n  }\n  .sb-hero h1 {\n    margin: 0;\n    font-size: clamp(34px, 5vw, 64px);\n    line-height: 1.04;\n    letter-spacing: -.035em;\n  }\n  .sb-lead {\n    margin: 22px 0 0;\n    color: var(--muted);\n    font-size: clamp(17px, 2vw, 21px);\n  }\n  .sb-chips {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 10px;\n    margin-top: 25px;\n  }\n  .sb-chip {\n    padding: 9px 13px;\n    border: 1px solid #bdd6c8;\n    border-radius: 999px;\n    background: #fff;\n    color: var(--green-dark);\n    font-size: 14px;\n    font-weight: 700;\n  }\n  .sb-section { padding: clamp(55px, 8vw, 100px) 0; }\n  .sb-section + .sb-section { border-top: 1px solid var(--line); }\n  .sb-heading {\n    max-width: 760px;\n    margin: 0 auto 42px;\n    text-align: center;\n  }\n  .sb-heading h2 {\n    margin: 0 0 13px;\n    font-size: clamp(30px, 4vw, 48px);\n    line-height: 1.1;\n    letter-spacing: -.025em;\n  }\n  .sb-heading p { margin: 0; color: var(--muted); font-size: 18px; }\n  .sb-grid-4 {\n    display: grid;\n    grid-template-columns: repeat(4, 1fr);\n    gap: 18px;\n  }\n  .sb-card {\n    padding: 26px;\n    border: 1px solid var(--line);\n    border-radius: 20px;\n    background: #fff;\n  }\n  .sb-icon {\n    display: grid;\n    width: 44px;\n    height: 44px;\n    margin-bottom: 18px;\n    place-items: center;\n    border-radius: 50%;\n    background: #e8f4ed;\n    color: var(--green);\n    font-size: 21px;\n    font-weight: 900;\n  }\n  .sb-card h3 { margin: 0 0 8px; font-size: 19px; }\n  .sb-card p { margin: 0; color: var(--muted); font-size: 15px; }\n  .sb-split {\n    display: grid;\n    grid-template-columns: 1fr 1fr;\n    align-items: center;\n    gap: clamp(28px, 5vw, 72px);\n  }\n  .sb-copy h2 {\n    margin: 0 0 18px;\n    font-size: clamp(30px, 4vw, 48px);\n    line-height: 1.1;\n    letter-spacing: -.025em;\n  }\n  .sb-copy p { color: var(--muted); font-size: 17px; }\n  .sb-list { margin: 24px 0 0; padding: 0; list-style: none; }\n  .sb-list li {\n    position: relative;\n    margin: 13px 0;\n    padding-left: 30px;\n    font-weight: 700;\n  }\n  .sb-list li::before {\n    position: absolute;\n    left: 0;\n    color: var(--green);\n    content: \"✓\";\n  }\n  .sb-specs {\n    display: grid;\n    grid-template-columns: repeat(4, 1fr);\n    gap: 1px;\n    overflow: hidden;\n    border: 1px solid var(--line);\n    border-radius: 20px;\n    background: var(--line);\n  }\n  .sb-spec {\n    padding: 24px 18px;\n    background: #fff;\n    text-align: center;\n  }\n  .sb-spec strong { display: block; color: var(--green-dark); font-size: 24px; }\n  .sb-spec span { color: var(--muted); font-size: 13px; }\n  .sb-banner {\n    padding: clamp(32px, 5vw, 64px);\n    border-radius: 24px;\n    background: var(--green-dark);\n    color: #fff;\n    text-align: center;\n  }\n  .sb-banner h2 { margin: 0 0 12px; font-size: clamp(28px, 4vw, 44px); }\n  .sb-banner p { max-width: 760px; margin: 0 auto; color: #d8eee2; font-size: 17px; }\n  .sb-gallery {\n    display: grid;\n    grid-template-columns: 1fr 1fr;\n    gap: 20px;\n  }\n  .sb-gallery figure { margin: 0; }\n  .sb-gallery figcaption {\n    padding-top: 10px;\n    color: var(--muted);\n    font-size: 14px;\n    text-align: center;\n  }\n  .sb-note {\n    margin-top: 24px;\n    padding: 18px 20px;\n    border-left: 4px solid var(--green);\n    border-radius: 8px;\n    background: var(--cream);\n    color: #4f5b54;\n    font-size: 14px;\n  }\n  @media (max-width: 900px) {\n    .sb-hero, .sb-split { grid-template-columns: 1fr; }\n    .sb-hero-copy { order: 1; }\n    .sb-hero-media { order: 2; }\n    .sb-grid-4, .sb-specs { grid-template-columns: 1fr 1fr; }\n  }\n  @media (max-width: 560px) {\n    .sewtech-bobbin img { border-radius: 14px; }\n    .sb-hero { padding: 24px 18px; border-radius: 18px; }\n    .sb-grid-4, .sb-specs, .sb-gallery { grid-template-columns: 1fr; }\n    .sb-section { padding: 48px 0; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"sewtech-bobbin\"\u003e\n\u003csection class=\"sb-hero\"\u003e\n\u003cdiv class=\"sb-hero-copy\"\u003e\n\u003cp class=\"sb-eyebrow\"\u003eSewtech · Embroidery Essentials\u003c\/p\u003e\n\u003ch1\u003eProfessional Results Start with a Better Bobbin\u003c\/h1\u003e\n\u003cp class=\"sb-lead\"\u003ePrewound Size L (SA155) bobbins with soft-spun 70D\/2 polyester thread, engineered for smooth feeding, even tension, and dependable high-speed embroidery.\u003c\/p\u003e\n\u003cdiv class=\"sb-chips\" aria-label=\"Product highlights\"\u003e\n\u003cspan class=\"sb-chip\"\u003eSize L \/ SA155\u003c\/span\u003e \u003cspan class=\"sb-chip\"\u003e70D\/2 · 60 wt.\u003c\/span\u003e \u003cspan class=\"sb-chip\"\u003eWhite Polyester\u003c\/span\u003e \u003cspan class=\"sb-chip\"\u003e144 Pieces\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sb-hero-media\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0659\/2243\/3184\/files\/sewtechplasticbobbins.png?v=1784894420\" alt=\"\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"sb-section\"\u003e\n\u003cdiv class=\"sb-heading\"\u003e\n\u003cp class=\"sb-eyebrow\"\u003eMade for consistent stitching\u003c\/p\u003e\n\u003ch2\u003eLess setup. More embroidery.\u003c\/h2\u003e\n\u003cp\u003eSkip manual winding and keep production moving with clean, tightly packed bobbins ready for your next design.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sb-grid-4\"\u003e\n\u003carticle class=\"sb-card\"\u003e\n\u003cdiv class=\"sb-icon\"\u003e1\u003c\/div\u003e\n\u003ch3\u003eUniform tension\u003c\/h3\u003e\n\u003cp\u003eAdvanced machine winding helps maintain consistent thread tension from the first layer to the last.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"sb-card\"\u003e\n\u003cdiv class=\"sb-icon\"\u003e2\u003c\/div\u003e\n\u003ch3\u003eBreak resistant\u003c\/h3\u003e\n\u003cp\u003eSoft-spun polyester thread supports reliable stitching during demanding, high-speed embroidery.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"sb-card\"\u003e\n\u003cdiv class=\"sb-icon\"\u003e3\u003c\/div\u003e\n\u003ch3\u003eClear plastic sides\u003c\/h3\u003e\n\u003cp\u003eTransparent flanges resist distortion, do not absorb machine oil, and make inventory easy to identify.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"sb-card\"\u003e\n\u003cdiv class=\"sb-icon\"\u003e4\u003c\/div\u003e\n\u003ch3\u003eReady to use\u003c\/h3\u003e\n\u003cp\u003eEliminate pre-winding time so operators can change bobbins quickly and focus on production.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"sb-section sb-split\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0659\/2243\/3184\/files\/prewound-bobbins-premium-style.png?v=1784894433\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"sb-copy\"\u003e\n\u003cp class=\"sb-eyebrow\"\u003ePrecision machine wound\u003c\/p\u003e\n\u003ch2\u003eNeat layers for smooth, predictable feeding\u003c\/h2\u003e\n\u003cp\u003eEach bobbin is tightly and evenly wound to reduce tension changes between layers. The result is cleaner operation, fewer interruptions, and more repeatable embroidery across your batch.\u003c\/p\u003e\n\u003cul class=\"sb-list\"\u003e\n\u003cli\u003eConsistent thread delivery\u003c\/li\u003e\n\u003cli\u003eReduced winding and changeover time\u003c\/li\u003e\n\u003cli\u003eReliable batch-to-batch performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"sb-section\"\u003e\n\u003cdiv class=\"sb-heading\"\u003e\n\u003cp class=\"sb-eyebrow\"\u003eProduct specifications\u003c\/p\u003e\n\u003ch2\u003eSize L bobbins for commercial embroidery\u003c\/h2\u003e\n\u003cp\u003eAlso known as Style L or SA155.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sb-specs\"\u003e\n\u003cdiv class=\"sb-spec\"\u003e\n\u003cstrong\u003e20.3–20.7 mm\u003c\/strong\u003e\u003cspan\u003eApprox. outside diameter\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sb-spec\"\u003e\n\u003cstrong\u003e8.9 mm\u003c\/strong\u003e\u003cspan\u003eApprox. bobbin height\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sb-spec\"\u003e\n\u003cstrong\u003e70D\/2\u003c\/strong\u003e\u003cspan\u003eSoft-spun polyester\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sb-spec\"\u003e\n\u003cstrong\u003e60 wt.\u003c\/strong\u003e\u003cspan\u003eFine bobbin thread\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 28px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0659\/2243\/3184\/files\/plasticembroiderybobbins.png?v=1784894422\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"sb-note\"\u003e\n\u003cstrong\u003eFit note:\u003c\/strong\u003e Bobbin names and dimensions can vary by machine. Check your embroidery or sewing machine manual before purchasing.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"sb-section sb-split\"\u003e\n\u003cdiv class=\"sb-copy\"\u003e\n\u003cp class=\"sb-eyebrow\"\u003eWide compatibility\u003c\/p\u003e\n\u003ch2\u003eBuilt for many multi-needle machines\u003c\/h2\u003e\n\u003cp\u003eSize L \/ SA155 bobbins are commonly used with commercial embroidery machines, including compatible models from Sewtech, Ricoma, Happy, Tajima, BAI, ZSK, and Melco. They may also fit selected home embroidery and sewing machines.\u003c\/p\u003e\n\u003cul class=\"sb-list\"\u003e\n\u003cli\u003eIdeal for many commercial multi-needle machines\u003c\/li\u003e\n\u003cli\u003eSupports smooth high-speed stitching\u003c\/li\u003e\n\u003cli\u003eConvenient for production shops and studios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0659\/2243\/3184\/files\/size-l-bobbin-three-machines.png?v=1784894455\" alt=\"\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"sb-section\"\u003e\n\u003cdiv class=\"sb-heading\"\u003e\n\u003cp class=\"sb-eyebrow\"\u003eChoose the correct size\u003c\/p\u003e\n\u003ch2\u003eSize L is shorter than Size A\u003c\/h2\u003e\n\u003cp\u003eThey have a similar diameter, but their heights and intended machine types differ.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sb-gallery\"\u003e\n\u003cfigure\u003e\n\u003cfigcaption\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0659\/2243\/3184\/files\/bobbin-size-most-home-machines.png?v=1784894449\" alt=\"\"\u003e\u003cbr\u003eSize L compared with Size A \/ Class 15\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cfigure\u003e\n\u003cfigcaption\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0659\/2243\/3184\/files\/bobbin-size-guide-premium-style.png?v=1784894428\" alt=\"\"\u003eReference guide for common bobbin formats\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"sb-section sb-split\"\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0659\/2243\/3184\/files\/bobbin-box-green.png?v=1784894424\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"sb-copy\"\u003e\n\u003cp class=\"sb-eyebrow\"\u003eEssential white\u003c\/p\u003e\n\u003ch2\u003eA versatile foundation for everyday projects\u003c\/h2\u003e\n\u003cp\u003eThe neutral white bobbin thread works beautifully across embroidery, sewing, and DIY projects. Its soft, cotton-like feel makes it a comfortable choice for garments and designs worn close to the skin.\u003c\/p\u003e\n\u003cul class=\"sb-list\"\u003e\n\u003cli\u003eClean white color for versatile use\u003c\/li\u003e\n\u003cli\u003eSoft feel suitable for apparel\u003c\/li\u003e\n\u003cli\u003eOrganized bulk packaging for easy storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"sb-section\"\u003e\n\u003cdiv class=\"sb-heading\"\u003e\n\u003cp class=\"sb-eyebrow\"\u003eCreate with confidence\u003c\/p\u003e\n\u003ch2\u003eFrom production runs to detailed designs\u003c\/h2\u003e\n\u003cp\u003eDependable bobbin tension gives your embroidery a strong, clean foundation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sb-gallery\"\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0659\/2243\/3184\/files\/vibrant-embroidery-pattern-collage.png?v=1784895283\" alt=\"\"\u003e\u003c\/figure\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0659\/2243\/3184\/files\/new-embroidery-pattern-collage_bbc5d6f5-c46b-4889-9205-d361e235afd3.png?v=1784895281\" alt=\"\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"sb-banner\"\u003e\n\u003ch2\u003eReady when inspiration strikes\u003c\/h2\u003e\n\u003cp\u003eKeep a dependable supply of Sewtech Size L prewound bobbins on hand and spend more time stitching—not winding.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"MagneticHoop","offers":[{"title":"Default Title","offer_id":58369883177120,"sku":"PB-W70-144L","price":184.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/2243\/3184\/files\/sewtechplasticbobbins.png?v=1784894420","url":"https:\/\/www.magnetichoop.com\/ja\/products\/sewtech-size-l-sa155-prewound-bobbins-70d-2-60wt-white-polyester-bobbin-thread-144-pack","provider":"MagneticHoop","version":"1.0","type":"link"}