poly is robust, strong and high performance thread which is designed specifically for multi-head embroidery machines. Denier Number Of Colors Packing No: 30(150D/2) 462 15X2500 Mt. No:40(120D/2) 462 15x2500 Mt. No: 30(150D/2) 25 10X7500 Mt No: 40(120D/2) 25