The lightweight wood shells allows for hours of comfortable play when worn over the shoulder with the provided strap. They are available in 18x22, 20x18, and 22x22 sizes (diameter x depth) and include two-ply tunable heads with an outer ply of synthetic leather for accentuated low–end frequencies. Our patent-pending PBS30BD Leg/Bass Drum Adapter Kit allows your Surdo to be played vertically like a floor tom or horizontally with a pedal like a bass drum. Pearl’s Pearl’s patented Air-Suspension Feet (US Patent #5881981) provide maximum resonance and solid grip to minimize sliding on any floor surface. The durable yellow plastic covering with green and blue accents highlight the colors of Brazil.