1)material:30%nylon+70%polyester velcro tape 2)sizes:10mm,12mm,16mm,20mm,25mm,30mm,32mm,38mm,40mm,50mm,100mm,110mm 3)any color our factory is specilized velcro tape/hook and loop from 1986,we have three types.Grade A;100%nylon. Grade B:70%nylon+30%polyester.Grade C: 30%nylon+70%polyester.They have high quality.welcome to our factory! 70%poyester magic tape velcro tape