These Schumacher Racing Products SST foam tyre inserts are a hard compound option designed for 1:10 off-road buggy tires. The hard rating suits drivers who want firm support under lateral load and reduced squash on hard-packed or high-grip surfaces. Sold as a pair, they are a factory replacement insert for Schumacher 1:10 Cougar platform vehicles. Features: Hard compound foam for firm tire support Sold as a pair Designed for 1:10 off-road buggy tires Compatible with Schumacher Cougar platform 7/7/26 cs