3- ILSCO IPC-4/0-6-B KUP-L-TAP insulation Piercing Connectors new in packaging, (opened to take picture) these are used to makes taps on main cables from #4 AWG to 4/0 AWG with taps from #14 to #6 AWG.       No need to tape connections just align wires and tighten the 1/2 bolt. Done!