Raychem Soldergrip Heat- Shrink Butt Splice
#12-10, SolderGrip Heat-Shrink/Solder Multiple Wire Butt Splice, 10 Clam, Prefluxed Solder Preform Provides A Controlled Soldering Process, 1 Piece Design Makes Installation Easy, Polyolefin Heat Shrink Sleeve Provides Encapsulation, Inspectability, Strain Relief & Insulation.