... hook and loop,such as general velcro, Adhesive velcro,Back to back velcro,velcro cable ties,Elastic velcro Tape,Velcro hair roller,Hook and Loop one side ... ,bags, curtain,sports equipment etc...4. Material: 100%nylon,100%polyester; mixed of nylon and polyester5. Normal sizes:12.5mm,16mm,20mm ...