High Quality Material Beadlock, No Need to Glue The 2.2 inch wheel rims are for 1/10 RC Rock Crawler Outer Diameter: 64mm, Thickness: 35mm, Hex Drive: 12mm Tool Supplies: Assembly Category RC Parts & Accs: Servo Accessories Use: Vehicles & Remote Control Technical Parameters: Value 2 Remote Control Peripherals/Devices: Receivers For Vehicle Type: Cars Four-Wheel Drive Attributes: Assembly Wheelbase: Screws Color: Black Material: Plastic Package Contents: 8 x RC Car 2.2 Wheel Rims Only the above package content, other products are not included. Included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.