These high quality black castor cup has a felt base.
These are available in 3 different sizes:
- Small: (3.5cm diamter)suitable for 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.