Upright Piano Caster Cups - Set of 4 - Black
Don't be fooled by cheaper off-the-shelf caster cups made for household furniture. These economical, yet durable piano caster cups in black heavy-duty plastic are designed to withstand and support the weight of your piano while protecting your floors.Upright cups measure 4.5 inches outer diameter and 1.75 inches inner diameter. In other words,the size of the casters on your piano should be 1.75 inches or less in diameter.Sold as a set of 4 cups.