2pcs 1.25"/ 32mm Small Tail Wheel Rubber PU Nylon Hub Thickness:12mm Axle hole: 2.1mm For RC Airplane Plane Replacement Parts Excellent quality Rubber Wheels,not the cheap Diameter: 1.25"/ 32mm / Axle hole:2.1mm Thickness:12mm Net Weight:3.6g/pc Pack of 2