Standard Center Bearing ID is 6mm (0.236 inch)
Each wheel size is sold as a SET of (2) Wheels. You're bidding on one set of (2) wheels ONLY
Outside diameter:64mm(2.52 inch)
Thickness:18mm
Ball bearing hole:6mm/0.236 inch
material:rubber,metal
colour:Black
packing inculde:4*wheels
4*Bearing
4*shaft screws
8*washers
4*wrenches