Narrow Wedge Tuning Mute. 90mm x 13mm x 13mm
- Durable polyurethane outlasts felt or rubber mutes
- Does not discolor copper strings
- Does not dry out like rubber
- Does not absorb dirt like felt (can be cleaned if discolored by dirt or rust)
- Soft, flexible elastomerized polyurethane material
- Lighter than felt or rubber