Gardner Bender GBX-TK Xtreme Assorted Butt Splice Terminal Kit, Adhesive Heat-Shrink Insulation, 22-10 AWG, Water / Environment Proof, 600 Volt, Crimp & Heat Seal Wire, 24 Pk., Yellow, Blue & Red Heat-activated adhesive melts and flows to create a seal Rated at 600 Volt Max GB Xtreme Terminals