Product Name: Prewound Bobbins Thread for Embroidery and Sewing From Initial Factory Model NO.: L, M, A Specification: 70d/2 Pattern: White, Black Material: 100% Polyester Feature: High Tenacity Regular Size: L, M, a etc. Sided: Plastic Sided, Cardboard Sided, Sideless Usage: Embroidery &Sewing Other Materials: 60s/2 Spun Polyester, 28s/2 Poly/Poly Corespun etc Trademark: Sanbest Transport Package: 144bobbins/Box, 40boxes/Carton Origin: Ningbo, China HS Code: 5401101000 Product Description Description:High performance ready wound bobbins for underthread applications in wide range of filament and staple spun fibers and constructions. Bobbins are delivered in avariety of sizes and colors and are designed to provide consistent stitch formation and dependable performance.Application:Many non-apparel usesMain Items Available:StyleTypeComposition &SpecificationColorsApplicationL, MWithout Side100% High Tenacity Polyester 70D/2100% Regular Tenacity Polyester 75D/2100% Spun Polyester Ne60/2, Ne80/2, Ne50/2Corespun Polyester Ne29/2, Ne45/2White, BlackEmbroideryL, MPaper sideL, M, APlastic sideLMagnetic sideM, GPaper side100% Nylon 210D/2, 210D/3, 280D/1, 420D/1(soft or bonded)White, BlackSewingM, G, L, U, E, HWithout SideFeatures &Comments:1. Bobbin uniformity, tack and yardage are strictly controlled2. Most bobbin styles are packaged in cases of 144 bobbins (1 gross).3. Bobbins and packages can be made specially according to clients' demands.4. Poly filament thread has slick face, thin but strong and can create soft backing even on dense designs. Spun polyester thread is mainly used as economical choice. When embroidering on cotton fabrics, cotton thread or cotton/poly corespun thread is still the best choice.5. Plastic side bobbins sometimes are smooth and perhaps cause backlash, and cardboard sides can provide more friction to avoid this problem, but plastic sides bobbins are reusable and cardboard sides bobbins are disposable. Bobbins without side are at lower cost than sided bobbins and generally don't take troubles to function of bobbins as long as we clear the bobbin regularly.6. Bobbin thread in big packages is provided for economical embroiderers.