This is an unused genuine Roland replacement foam cone. If your Roland mesh head drum has stopped being as sensitive, doesn't respond to lighter hits, or only triggers when hitting near the center of the drum, you likely need to replace your foam cone. It is a pretty simple repair, and there are online tutorials that
Roland APC-10 All-Purpose Clamp - Unopened – Breiker Music
Custom Height Roland Replacement Trigger cones by Convertible Percussions
This is an unused genuine Roland replacement foam cone. If your Roland mesh head drum has stopped being as sensitive, doesn't respond to lighter hits,
Genuine Roland Replacement Part Foam Cone Trigger Cushion
Roland Foam Trigger Cone Part # 01909478 for V-Drums - Set of 4 - Genuine OEM
Custom Height Roland Replacement Trigger cones by Convertible Percussions
triggers & cushions - Rathgeber Drums Startseite - e-drums, drum trigger & accessories
Replacement Electric Drum Trigger Sponge Foam For Roland PD125 PD105 PD128 PD108 PD85 PDX100 : Musical Instruments
Custom Height Roland Replacement Trigger cones by Convertible Percussions
Replacement Electric Drum Trigger Sponge Foam For Roland PD125 PD105 PD128 PD108 PD85 PDX100 : Musical Instruments
Yibuy Black Electronic Drum Replacement Parts Percussion Instrument Piezo Trigger Foam Cone Rack T Clamps