hardwood upright piano caster cups set of 4 real walnut wood piano leg pads protection

natural wood made upright piano caster cups.can securely hold and support your upright piano for years of use. designed for upright piano stand, these piano casters are to be placed under a piano's legs in order to protect floors, wood, tiles and carpets. and help maintains a proper pedal height. dimensions: 4' outer diameter, 1.9", inside diameter. note: these piano casters work for upright piano only.not for grand piano. nonslip antinoise eva foam the foam mat under the wood caster cups absorb vibration and reduces noise without scratching hardwood floors. anti-corrosion:the black walnut wood piano casters protect piano's metal and brass wheels from rust or tarnish. package includes 4pcs of piano coaster cups..syi