Bottom diameter: 98mm
Groove diameter: 58mm
Material: ABS engineering plastics
Avoid the piano the wheel contact directly with the ground,
Scattered piano wheel bearing area and protect the floor from the piano wheels crush.
An excellent way to help prevent indentations in your flooring due to the extreme weight from a piano’s wheels or legs.
To make the piano more stable and aviod being moved easily by outside influence
Not designed to accomodate pianos with double wheels.
Antiskid,moistureproof,absorbing shock and sound insulation.
3X Piano Cups for Grand Pianos