RC4LESS Foam donuts for your dirt oval car. These are our own foam compounds and not another company's brand under our label. Sized for your 2.0" diameter dirt oval wheels. They measure 2.8" outside diameter, 1.8" inside diameter and 1.2" wide. Packaged in pairs and each pair includes a compound sticker for the inside of your wheels. Pick your compound below. Our Silver, Gold and Bronze are foam compounds exclusive to RC4LESS. They are best suited for soft sticky clay tracks. The Pink, Magenta & Purple are our natural rubber compounds with a higher rubber content for harder more abrasive tracks. FRONTS (1 pair)