The HPI Racing 4660 Pro Molded Inner Foam is a high-quality replacement part designed for RC model vehicles, specifically for HPI, HSP, and universal brands. This black soft foam insert is compatible with Hpi buggy, cars, trucks, and motorcycles at a 1:10 scale. Made in China, this tire insert offers a perfect fit and durable performance, ideal for hobbyists ages 12 and up. The product comes brand new in its original packaging and is a must-have for anyone looking to maintain or upgrade their RC vehicle for optimal performance.