... manufacturer 2) High quality 3) Reasonable price 4) Use good raw material peel the coat of wire,then insert to tube,use ... wire tightly!· size:D3,D4,D5,D6,D7,D8,D10· Shell material: Nylon 66, 94V-2· Usage: Peel the coat of wire ... insert to tube, use pincers to fix them.· Feature: Nylon shell , long copper tube , easy to conduct electricity and hold wire ...