Are you looking for a little bit of a challenge while at the same time sharpening your welding skills. If so then we have the answer for you. With your purchase you will receive one (1) complete 4"x4" aluminum cube welding kit. Our cube kits come with six (6) tab and slotted CNC plasma cut sides. Each side is cut from 1/8" thick aluminum. These cube kits are great for practicing your outside corner corner joints, tack welds, and stitch welds.