Piattino acoustic insulating piano caster cups. These caster cups are designed to put an acoustic break between the vibrating structure of the piano and the floor, to cut back on sound transmission into adjoining rooms. This caster cup inserts 1-1/2″ of acoustical insulation between the piano and the floor, yet due to its unique design it only raises the piano only about 1/2″ off the floor. Available in two sizes (regular and large) and two finishes – polished brass or nickel. Regular size: 2-5/8″ inside, and 3-3/4″ outside. Large size: 3-1/2″ inside, and 4-3/4″ outside. For More Information see these pages on our partner’s website: How Piano Sound Travels Noise Reduction for Pianos
