Surecrimp Aluminum Compression Sleeve, Compression connection, Dual Rated, Aluminum material, Tin plated connector, Standard Barrel, UL, CSA, Copper/Aluminum Primary Conductor 350 kcmil, Contains De-Ox®, 1 conductors, Dimensions 5.125 in x 1.105 in x 1.105 in, rated for 35 kV, die color code Brown, primary color(s) Silver,