Pearl’s Surdos are the bass-voice and foundation of our Brazilian Percussion Line. The lightweight wood shells allows for hours of comfortable play when worn over the shoulder with the provided strap. They are available in 18x22, 20"x18", and 22x22 sizes (diameter x depth) and include two-ply tunable heads with an outer ply of synthetic leather for accentuated low–end frequencies. 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. MODELS PBS2222 Surdo 22" x 22" PBS2018 Surdo 20" x 18" PBS1822 Surdo 18" x 22" PBS30BD Legs & BD Adaptor Kit CASES PSC2222BS Surdo Case for 22" x 22" PSC1822BS Surdo Case for 18" x 22"