Fielect 2.25” RC Airplane Wheel Tire and Wheel Sets for RC Airplane Car PU Sponge Tire Product Descriptions: 1. It’s small and easy to install in your RC airplane or RC car. 2. RC Airplane tyres are made of PU sponge, hub are made of aluminum alloy, perfect replacement. Technical Parameters: Size: 2.25 inch; Axle hole Diameter: 4mm/0.16 inch Thickness: 22mm/0.86 inch ; Diameter: 57mm/2.22 inch; Color: Black Package Included: 1 Pcs x Aluminum Alloy Core Tire Note: 1. Please pay attention to the Specification Table before purchasing, make sure our product is right what you want.