1.durable Velcro 2.made of nylon/polyester 3Greatforpackage binding,luggage,toys,sports ... made of cotton,which proved to be impractical.Nylon and polyester are the fibers most commonly used ... 27.5yard a roll of hook & loop. 4)Colors: Red, Orange, Blue, Green, White, Black, Gray, Brown etc ... Loop Co., Ltd specialized in manufacturing all kinds of nylon velcro tie, hook&loop,elastic velcro, velcro tape, ...