Velcro hook,Molded hook,injection hook 1)Material:100% nylon 2)Width:from 10mm to 150mm 3) ... hookFeatures Specifications:Material: Injection hook is Made of 100% nylonFeatures:1) Extraordinary stickness.2) There are three different style hooks ... :1#,2#,3#.3) The appearance & height of hook is different. ...