PDP By DW Concept Series (Double Chain) Bass Drum Pedal (PDDPCO). 15 x 10.5 x 8.5 inches. Concentric Cam and Dual Chain-Drive. Single-Post Frame with Spring Rocker. XF Extended Footboard with Needle Bearing Hinge. Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt. We usually respond within 24 hours on weekdays. Thank you for shopping at our store.