lt p gt Trekassy yellow lift straps are made from industry grade polyester which is more durable and UV resistant than either nylon or polypro as well as for 10% MAX stretch while under load. lt br gt These Polyester Webbing Sling are 2 inches width straps with flat eyes at each end which offers greater surface contact to protect the load from damage. lt br gt You may rest assured all our lift sling straps are meet WSTDA standards and it is safe for general use. lt br gt According to the actual lifting situation