Machined from solid aluminum for a sleek look and smooth feel. Sprocket-less drive cam includes shift lever for switching between cam settings. Perforated solid-aluminum footboard with contoured heel plate. Interlocking Delta hinge and Tri-Pivot Swivel Toe-Clamp add stability. Vertical Spring Adjustment lets you fine-tune your action. Control beater with adjustable weight/impact for the perfect stroke. Tri-Pivot Toe-Clamp is secure, yet easy on bass drum hoops. Floating Rotor Drive System. Includes DW MFG carry case. Drive System: Double Chain.