This is a pair of Open Cell Medium Rear 1:10 Buggy Foam. Pro-Line is always pushing to bring you products that give you an edge over the competition and this new Medium open cell foam for 1:10 Buggy Rear does just that. This foam is ideal for carpet racers who are pushing the limits of their carpet tires and need more support than the stock foams provide. If you are a mod buggy racer running Pro-Line's soft Z4 carpet compound tires, then this new foam will provide increased sidewall support and consistently faster lap times. Get this new must-have open cell Medium foam for your buggy today!