The Russ Miller “All-N-1” Signature Practice Pad features a 13”red gum rubber playing surface with interchangeable surfaces such as Fiberskyn® insert and a blue nylon muffle insert. Therefore, the All-N-1 provides a combination of workouts from normal, moderate, to extreme in one unit. The Russ Miller Signature Brush Maps set of 8, *sold separately, may be inserted into the pad for practicing brush patterns. A 360° replicated rim is applied around the perimeter of the playing surface to simulate an actual rim. The pad base is Baltic Birch providing excellent durability, solid feel, and pitch. A 13” Non-Slip disc is applied to the bottom for practicing on flat surfaces, your lap, or on top of a 13” drum. The Hoop Groove around the bottom perimeter fits on top of a 14”drum hoop inside a 14” for snare element sound. Snare Basket Receivers assure total stability and provides angle options. Russ Miller Groove Wedge, *sold separately, can be mounted securely to provide musical color such as cross-sticking, clave and cascara.