quick splice,wire connector,wire joint UL approved Nylon 66, 94V-2 insert pre-stripped wires into connector tube quick splice,wire connector,wire jointMaterial: UL approved Nylon 66, 94V-2Nylon insulated close-end wire connectorsTo apply, insert pre-stripped wires into connector tube and crimp it with crimping tool to hold wires firmly even in vibration. quick splice,wire connector,wire joint