... ,94V-2, certificated agree,with spring inside. how to use:peel wire coat,insert the wire in,then tighten· Shell material: Nylon 66, 94V ... -2 · Usage: Peel the coat of wire, then insert to tube, use pincers to fix them.· Feature: Nylon shell , long copper ... tube , easy to conduct electricity and hold wire tightly.Type A(mm)(mm)D(mm)Suitable ...