... strap with buckle for RC heli Product name : Functional book strap, Nylon book strap, Nylon velcro straps...Features and usage: ... of 100% nylon.2) Self-gripping, infinitely adjustable and reusable. with coating for no slip3)Width: 16mm,20mm,25mm,30mm,38mm,50mm ... European environmental protection standards.7) OEM and special designs are warmly welcomed. No slip Velcro strap with buckle for RC heli