If you are looking for sewing threads with great tension, no need to look further. This heavy-duty bonded nylon thread with great abrasion resistance is way stronger than regular cotton or polyester thread. An adult will not be able to break it by hand. No matter whether it is for commercial or household use, this tough sewing string will not let you down. The thread can easily bind thick and tough materials such as leather, vinyl, denim, and canvas. When used for upholstery or drapery, the stitches are inconspicuous and sturdy. Sewing heavy buttons, handbags, suitcases, luggage, garments, boots, or even dog toys cannot go easier! The thread is UV-resistant and suited for outdoor or water sports gear repair.