Darnell Dual Wheel Upright Piano Casters With Ball Bearings In Wheels Wheel Material:Set of 4 Upright Piano Wheels - Standard High Capacity Neoprene Material J-4004HD-N2 - For Yamaha N2

J-4004HD-N2 - For Yamaha N2 AvantGrand

which is lined with rubber to protect the finish of your piano

These luxurious piano caster cups are brass plated lucite

Built in the USA from solid maple hardwood

Darnell Dual Wheel Upright Piano Casters With Ball Bearings In Wheels Wheel Material:Set of 4 Upright Piano Wheels - Standard High Capacity Neoprene Material J-4004HD-N2 - For Yamaha N2These top of the line Darnell dual rubber piano wheel casters are equipped with four sided double ball raceways, that feature ball bearings in the wheels for easier rolling. For heavier upright pianos, these are the best option on the market (both in supporting the most weight, and in ease of transport). The piano wheel diameter is 2", with a wheel width of 3 4". Casters come with removable cast iron sockets with 4 screw holes. Cast Iron Socket