3 PCS Grand & Upright Piano Caster Cups Heavy Duty – Double Layer Solid Rubber with Metal Shell, Felt Bottom Non-Slip, Scratch Proof Piano Floor Protectors for All Floors, for Piano Leg Casters

["【Elegant & Heavy Duty】Made of double layer solid rubber wrapped in a gold metal shell, offers an elegant light luxury look while easily supporting the weight of grand and upright pianos without deforming.","【Self-Centering Spherical Recess】The self-centering spherical recess cradles the piano caster like a spoon, keeping it centered so it won't wobble or shift. The wide thick solid rubber base spreads pressure over a larger area to better protect your floor and casters.","【Wide Base Size】The lower rubber and felt base measures 4.8 inches in diameter, total height 1.1 inch. Gold top diameter is 2.5 inches. The glossy gold finish and painted rubber surface complement your piano's lacquer for a coordinated, elegant look.","【Non-Slip & Scratch Proof】Soft felt bottom provides excellent grip to prevent the piano from sliding, while protecting all floor types — hardwood, tile, carpet, or concrete — from scratches and dents.","【Easy to Use for Piano Leg Casters】 Simply place one caster cup under each piano leg caster. This 3-piece set is perfectly designed for grand pianos (3 legs) and also works for upright pianos."]