... ,use pincers to fix themfeature:nylon shell, long copper tube,easy to conduct electricity and hold wire tightly!· size:D3,D4,D5 ... ,D6,D7,D8,D10· 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 ...