Piattino Acoustic Insulating 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 less than 3/8″ off the floor. Available in two sizes and finishes. Sizes: Regular: 2-5/8″ inside, Large: 3-1/2″ inside. Sets of  three for grands or four for uprights in stock.

• A. #920310 Piattino Size 1 regular, brass, set of 3
• B. #920315 Piattino Size 1 regular, nickel plated, set of 3
• C. #920320 Piattino Size 2 large, brass, set of 3