Morris Products 97102 Insulated Single Entry Splice, Black, 4 - 14 Wire Range, 1/8" Allen Hex, 1.2" Length, 1.45" Height Black Insulated Electrical Power Connector Single Side Entry Splice - Single Entry Insulated Connector makes splicing easy and secure. Both Wires Enter Same Side of insulated connector Insulated Connector is 6061-T6 Aluminum CU9AL Dual Rated for use with Copper and/or Aluminum wires Insulated with rugged high-dielectric rubber/vinyl coating Pre-filled with oxide inhibitor