... quality(eg:high strengh.bright,no knots... 100% Polyester sewing thread Quality Approved: ISO9001Material : Polyester staple fiber 1.3D*38MMSpeciafications ... material of glazed polyester staple fibre ,so the sewing thread looks like more bright.Application: High speed sewing garment ... ,curtain,glove ,cap,bedsheet ,blanket,shoes,art craft etMain Technical index: Twist per meter:200-800 TPM ...