Yiguo 4pcs 1/8 RC Baja Buggy On Road Tires Tyre and Wheels Rims for Redcat HPI Racing Traxxas Car Suitable for RC 1:8 Off Road Car. Tyres are made of rubber with sponge inside, wheel rims are made of plastic, perfect replacement 100mm OD Black High Grip Rubber Tire Plastic Wheel and Rubber Tire Notes: The tire is not glued on rim, you can split it. If you want higher performance, please glue them well before using them.