plastic spring strap: 1. Material : PU 2. good in quality and competitive in price. 3. Customer's size ,color,design are wel plastic spring strap:1. Material : PU2. good in quality and competitive in price.3. Customer's size ,color,design are welcome.4. It is a good idea for promotion, gift , accessorry5. Packing; each in OPP bag. plastic spring strap