Roland Electronic Drum HHC Hi-Hat Control Pedal Bass Drum Bass Pedal FD-1 (Hi-Hat) FD-8 FD-7 v-drum v-drums These are replacement rubber bushings for when the pedal malfunctions due to hardening, deterioration, or cracking of the internal rubber. I have confirmed that these work well after using them to repair Roland HD-1, td-3, etc. I have multiple in stock, so please feel free to inquire. s1160b672⑧