VivaRhythm Soft Sound Series Djembe delivers a lower overall tone with outstanding projection. 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. Pre-tuned Napa heads produce a warm, softer attack followed by a deep sustain. Each drum is stackable inside the other for easy storage and transportation. Size: 9" head diameter/41,9 cm height. Materials: Synthetic shell, Napa head. Features: Synthetic shell is perfect for outdoor playing.