These high quality black castor cup has a rubber base.
These are available in 3 different sizes:
- Small (3.5cm diamter) suitable: All upright pianos with single-casters: B2E, B3E, U1, U3 & SU7, K113
- Medium (6cm diamter) suitable for: All upright pianos with double-casters: YUS1, YUS3, YUS5, SE122, SE132
- Large (8.5cm diamter) suitable for: Most grand pianos: CX Series, Bosendorfer
Please note: these are sold in single units.