The Vic Firth 12″ Double-Sided Practice Pad is available with soft rubber for quiet practice and with hard rubber for intensifying the workout and hearing each stroke. Features a dense wooden base for an authentic feel.This product can expose you to chemicals including Diisononyl phthalate (DINP), which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.