High quality brass castor cup for acoustic pianos
These are available in 2 different sizes:
- Small (3.5cm inner diameter) suitable for upright pianos with single-castors: B2E, B3E, U1, U3 & SU7, K113
- Large (9cm diameter) suitable for most grand pianos (including Yamaha CX Series and Bösendorfer models)
Please note: these are sold in single units.