... ... color:many color size:10mm~150mm environmental protection ! Titleback to back velcro CategoryVelcroMaterial100% Nylon, 60% Nylon and 40% Polyester ,30% ... From the function ,we can call them velcro, hook and loop, elastic velcro,tape,velcro strap,self-adhesive velcro,velcro cable ... velcro hair tape,coin velcro,die-cut velcro, un-napped loop,soft hook,fabricated velcro and so on. back to back velcro