Gardner Bender Xtreme 22-18 AWG Insulated Wire Butt Splice Red AMT-120GB Xtreme Heat Shrink Terminals offer triple protection against strain and vibration. They crimp easily without splitting to secure the connection in place. Soldering improves conductivity and provides a tough, corrosion proof connection. Heat shrinking forms a final watertight seal and the ultimate vibration and strain relief. Strong connections reduce wire pull out and keep you powered even when faced with heavy vibration.