Victor Moy's: 3D Printed 11.0mm wide, REAR Wheels. Special features includes: light weight, precise and durable 20mm diameter construction. Predrilled for "Flanged Disk." Providing: selectable traction and track conditions. 11mm wheel width for tight sidewall attachment. Acetone safe. Optional RTA Flange Disk recommended but NOT included. Very Popular among 1/27 scale racers. (2) Wheels per Package.