... 3--No reak knots 4--Well working for super-fast sewing machine ART. NO.:PP-SW NETicket Size Lengthcolor cardcolor Usage55s/21505000M ... ,10000YS50030s/3505000Y,10000YS50020s/2503000M,5000Y,10000YS500 Jesns,Matress Teants,Decorative Sewing,Footwear,Bag,Funiture28s/3452000M,5000YS50016s/2403000M,5000YS50020s/3305000YS50016s/3275000YS500