These grand piano caster cups are carved from the highest quality Canadian hardwoods, and are manufactured in the United States. Perfect for a grand piano, these piano caster cups measure 5" in diamater, with the inner bowl diamater measuring 2" (which will accept a wheel up to 1 1/2" wide"). A felt pad is glued to the bottom of the caster cup to protect your floor's finish.
If you need larger caster cups for your grand piano (as some have bigger wheels, or for a grand piano up to 9 feet long), we have a 5 1/2" model as well: 5 1/2" Large Grand Piano Caster Cups.