Filament fiber polyester prewound bobbins are the perfect combination of quality.time saving and convenient.Packaging design can speed up your production rate.Precise winding,can guarantee the correct code for each spool number. Type:100% polyester filament yarn Construction:multi line structure Application: furniture,footwear,bedding and mattress.leather goods.outdoor products. and other industrial applicaions. Size:70d/2,75d/2; Color: White,Black,Color Model:L,M,A Sideless,paper side and plastic side Advantage: 1.Loose packing,can speed up your production rate. 2.Precise winding,can ensure each spool number consistent. 3.With or without side