Lug, Copper, Two Hole, Long Barrel w/ Window, Tin Plated, Bus Bar Pattern N, 4/0 AWG Copper Conductor Size, Purple P54, 1-5/8in Wire Strip LG, 1/2in Stud Hole, 1.75in Stud Hole Spacing, 3.81 LG x 0.96 WD x 1.56 BH in