CNBTR 210D 180m Polyester Flat Sewing Waxed Linen Cord Handwork Waxed Thread for Leather (Black) Large pull-off strength, wear resistance, inelastic. Professionally made and a useful and practical tool. With suitable size, it is easy to carry and perfect to use. Made of exquisite material, this flat wax thread gives you a comfortable touching feel. Suitable for DIY handicraft, luggage, handbags, wallets and other leather goods.