Mxfans 12mm Hex Black Plastic Wheel Rims Screws & Rubber Tyres Tires RC 1:10 Racing Climbing Rock Crawler Pack of 4 Suitable for RC 1:10 Racing Climbing Rock Crawler. Perfect replacement for your kit, tyres are made of rubber, and wheel rims are made of plastic. There is sponge inserted for every tyre Note: The tyres and wheel rims are separated, you need to assemble and glue them together by yourself.