The 24 mm to 29 mm Engine Adapter by Estes Rockets allows you to seamlessly use 24 mm engines in rockets designed for 29 mm engine mounts. This reusable adapter is compatible with Estes 24 mm C11/D, E, and E30 series composite engines. This adapter can also be used with other brands' 24 mm composite single-use and RMS motor systems. Each package includes two orange paper adapter tubes, enabling quick and easy engine size transformation for multiple flights.

By incorporating this adapter, you can expand your engine options without modifying your rocket's existing 29 mm mount, providing greater flexibility and cost-effectiveness in your rocketry endeavors. The simple design ensures a secure fit and reliable performance, making it an essential accessory for any rocketeer looking to diversify their launch experiences.