Premium Red Copper-Copper barrel provides increased current flow, and ensures less voltage drop, preventing wiring failures and reducing equipment downtime. Thick barrel ensures strong crimp every time - your wire will never slip out of the connector.

Durablity-Translucent heat shrink tubing provides high tensile strength and resistance to stretch and mechanical damage. Thick barrel ensures strong crimp every time. The inner wall of heat-shrinkable tube has enough hot melt adhesive to ensure waterproof performance. Your wire will never slip out of these heat shrink butt connectors.

Waterproof-Polyolefin tubing on the outside and hot melt adhesive inside provides excellent waterproof property. Polyolefin tubing reduces in size and adhesive flows inside the insulation when heating. Dual-walled tubing ensures waterproof seal and prevents wire corrosion, can be ideal used whether you are working on your boat, vehicle, home or scientific projects.

Easy To Use - Strip the wire insulation with a wire crimper, crimp the connector barrel, and heat with a hot air gun or small torch. Start establishing secure, persistent connections in seconds. No soldering kit required.

Easy Identification-Tubings of different colors are easy to recognize. Measure the wiring, and by checking the mark of wire gauge of the polyolefin tubing, you can choose the right connector very easily.