This Pearl Masters Series 4-piece shell pack is crafted from 100% mahogany and finished in classic brooklyn burst finish. These 7.5mm shells are built from 6 plies of mahogany and reinforced with maple reinforcement rings. The mahogany drums produce a dark, warm, rich tone that harkens of vintage-era percussion. All drums feature Mastercast hoops and aluminum Opti-Mount tom holders and Remo Ambassador heads. Durable Masters bridge lugs will ensure a steady, accurate tune. Snare, cymbals and hardware not included.