... 2, certificated agree,with spring inside. how to use:peel wire coat,insert the wire in,then tighten· ... , 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 ... -6100pcs & 500pcsHDS-Φ825.611.810.26136 Safety-type wire joints