Pearl P-2002CL Left Footed PowerShifter Eliminator Double Bass Drum Pedal

4-position cam makes it 4 pedals in one. It also features 3-position Powershift adjustment, quad beater, low mass aluminum drive shaft, a uni-pressure spring clamp that allows infinite beater angle, a floating spring pendulum that reduces waggle. Chain drive. All the great PowerShifter features times 2.