Meinl's VivaRhythm Boom Series 3-Piece Stackable Bass Drum Set delivers a lower tone with outstanding projection in any playing environment. The synthetic shell features a rubber bottom to prevent slippage or scratching and is shaped to allow air to escape from the shell. This creates low fundamental tone that resonates fully. A pre-tuned synthetic head gives a robust attack. Each drum is stackable inside the other for easy storage and transport.