Octagonal practice pad, 12” with MDF base. The rubberized surface is divided into 2 different densities. The grey rubber is harder and has less rebound. The black rubber ball in the middle is softer and has more rebound. The idea is that this pad imitates the way a drumhead feels on a snare or other drum. On the back, there is a white, porous surface for practice with brushes. On the back, there are also 4 silicone feet for stability when placed on a hard surface.