... velcro,Back to back velcro,velcro cable ties,Elastic velcro Tape,Velcro hair roller,Hook and Loop one side,Mushroom Velcro ... : 100%nylon,100%polyester; mixed of nylon and polyester5. Normal sizes:12.5mm,16mm,20mm,25mm,30mm,38mm,40mm,50mm,80mm,90mm ...