The 9" Swap Pad Drum Practice System is a unique 3-in-1 practice pad featuring swappable playing surfaces that connect magnetically to the same base. Simply peel off one pad, swap with another, or flip the pad over for a totally different playing experience. Choose the response or resistance that matches your drum practice goals. Develop your touch, build your stamina, or refine your clarity of play - all with one drum practice pad system.