Prologix PXDEPAD 13-Inch David Ellis Hybrid Double Sided Practice Pad 13" x 3/16" red gum rubber playing surface produces a realistic drum feel and excellent rebound. 360 Degree "PTR" (Poly Tech Rim) replicates the realism of an actual snare drum rim by providing excellent impact strength and volume for producing shots, pings, cross shots and hi hat mocking. The back side of the "Hybrid" Instrument features a mini quint tenor layout for practicing movements, exercises and music. The 3" center spot can also be used as a focus pad for working on precision. A custom graphic laminate is included and applied to the main playing surface for greater articulation and simulation of a marching drum head. "SHM" (Snare Hoop Mount) technology allows you to mount the pad on top of any 14" snare drum hoop preventing any contact from the drumhead underneath. With "SHM" you really experience the best feeling surface and snare element sound in a pad.