... special in producing Velcro book strap,Self-locked book strap,Functional book strap... Colors:Red,Blue,Black... ... special in producing Velcro book strap,Self-locked book strap,Functional book strap...Features and usage :1) Material ... Gray, Brown etc. Any color and size, logo can be customized according to buyers requirement.6)All ... environmental protection standards. Velcro Strap with Different Logo