Detailed Product Description cotton sewing thread100% Poly core spun sewing thread100% cotton, cotton firber40/3, 20/3, 20/3*8, ... clearstarch as the customer reqirement.5 auto conner S and Z twist, single and twine6 color: black, raw white, blance, rice white ... made according to your requirement7 can be widely used in sewing bag, weaving curtain,webbing