Material is securely elevated off the ground to safely measure, cut, drill, finish, weld, solder, tighten, sand and more. Holds 1/2" to 4" copper, PVC, ABS pipe, conduit, uni-strut, and rebar. Tightly holds 1" x 2", 2" x 4", 4" x 4", and 2" x 6" lumber. Frees both hands to use power and hand tools. Handy 12" ruler on one edge.