1.It's not easy to fall off, free sewn. 2.easy to fasten and reuseable. 3.Strong adhesive quality. 4. ROHS&SGS Product name: High frequency velcro,high pressure special functionality velcro strap,velcro hook&loop... Features and usages:1) Using the high frequency to fusion, viscous excellent,it is not easy to fall off, free-sewn.2) With PVC glue backing.3) Width: 16mm,20mm,25mm,30mm,38mm,50mm, ...