Made of material for long time and durable use. This piano caster cups can disperse stress area and prevent floor being damage by wheels. Avoid piano wheels on the ground against corrosion. Make piano more stable and not affected by external forces.

Features
-Color: Black 
-Material: ABS
-Size: 9x9x1.5cm/3.54x3.54x0.59in
- These piano casters are to be placed under piano's legs in order to protect floors, wood, tiles and carpets. And help to maintain a proper pedal height.
- It can securely support your upright piano for many years of use.
- It will fit to Your bed with wheels, couch, chair, sofa, recliner, desk, table, dresser, piano, sofa.
- Thick enough to provide good sound insulation, absorption, skid resistance and to protect your floors.
- The pad is resistant to high temperature, does not deform, better protects the piano foot.