4 pieces of A36 hot rolled steel plate with 3/8" holes. Each piece is 1/4" diameter x 4" x 4". The holes will accept a 3/8" bolt. The plate is cut using a sheer, slight angulation of the cut is possible. Tolerance + or - .06". This is raw mild steel, it is deburred but please use caution, sharp edges are possible. This is not hardened target steel.