DOUBLELIN Prewound Size L (SA155) Bobbins — 144 White 60S/2 Polyester | Plastic-Sided, Ready-to-Use

DOUBLELIN prewound plastic-sided Size L (SA155) bobbins: 144 prewound white bobbins filled with soft 60S/2 polyester thread for embroidery and sewing machines that accept Brother size 9.4 / Size L bobbins.

These prewound bobbins arrive ready to install so you can finish projects faster and avoid winding time. Each bobbin is plastic-sided with a secure core and is loaded with 60S/2 spun polyester in white — a commonly recommended choice for embroidery and standard sewing. Designed to match the dimensions of Brother size 9.4 (Size L, SA155) bobbins, this pack offers bulk value for hobbyists, small shops, and production environments using compatible machines.

How do these prewound bobbins save time during embroidery work?

Because the bobbins are prewound, you skip manual winding and reduce thread-change interruptions. Install one straight from the pack and resume stitching, which is especially helpful on long runs and multi-garment jobs.

• 144 ready-to-use bobbins eliminate frequent bobbin winding pauses
• Plastic-sided construction simplifies insertion and removal
• Consistent tension from factory-wound cores improves stitch continuity

Are these bobbins compatible with my machine models?

These are Size L (SA155 / Brother size 9.4) bobbins and fit machines that accept that standardized size. Many home and industrial embroidery units from popular brands use Size L; check your machine manual or compare an existing bobbin to confirm fit before ordering.

• Commonly compatible with Babylock, Barudan, Bernina, Brother, Consew, Doublelin, Juki, Mitsubishi, Singer, Tajima
• If your model isn’t listed, verify it accepts Size L / SA155 bobbins
• Contact support with your machine model for compatibility help

What thread quality and colour can I expect from these bobbins?

The bobbins are wound with 60S/2 spun polyester thread, a soft, versatile option for general embroidery and sewing tasks. White is a neutral default that blends or serves as a base for many designs; the thread weight and construction provide reliable performance across fabrics.

• 60S/2 spun polyester — soft hand and good durability
• Recommended thread size equivalent: Brother suggests #90 as a comparable option
• Technical specs: LPW60S2, WT 50, Tex 20, Denier 180

How should I store and use these bobbins for best results?

Keep bobbins in a dry, dust-free container and use within reasonable timeframes to prevent tangling or dirt accumulation. Insert each prewound bobbin according to your machine’s bobbin case orientation and check tension before starting a production run.

• Store in original box or sealed container to avoid lint and dust
• Test one bobbin in your machine to confirm tension and direction
• Use consistent thread type across projects for stable stitch results

Who is this for: This 144-pack of DOUBLELIN prewound Size L bobbins is aimed at crafters, home embroiderers, small sewing shops, and production users who want a bulk supply of ready-to-install bobbins. If you use machines that require Brother size 9.4 (SA155) bobbins and favor polyester thread for everyday embroidery and sewing, this set provides convenience, consistent winding, and cost-effective inventory for frequent use.