Nylon Bonded Thread Sewing Thread (Black) 100% Continuous High Tenacity Nylon Yarn 210D/3ply, TKT40, Tex 70, 2000 Yards Strong Duty, Excellent Abrasion Resistance Perfect for Automotive, Furniture, Luggage & Handbags, Medical & Orthopedic Devices, Safety & Flotation Devices, Sporting Goods, Covers/ Web Slings & Tiedowns, Specialty Industrial Certified by OEKO-TEX Standard 100 Class One