1. Realistic Mini V8 EngineThis mini V8 engine is designed to simulate real structural principles. It is fully functional and detailed, and can actually run after powering up. In addition, we have realized the full bearing structure of the driving part in the mini space to ensure the stability and reliability of operation. 2. FUN FOR MODEL CAR ENTHUSIASTSSuitable for model cars such as the AX90104 SCX10II Capra VS410 Pro/Ultra, this mini engine building kit can add a unique touch to your collection. Installing the engine will make your RC car stand out from the competition. The running engine adds a dynamic element to your RC experience. 3. EXCELLENT GIFTSearching for the perfect gift? Look no further! This mini V8 engine kit is the perfect gift for yourself or other enthusiasts. You'll be amazed at the process of building and experiencing this miniature engineering masterpiece. With its many advantages, it is a gift to be treasured for a long time. 4. Build Your Own V8 EngineOur complete toy V8 engine assembly kit provides hours of fun as you fiddle with the crank, pulleys, belts and exhaust valves to bring this miniature engine kit to life before your eyes! Conquer long, boring days with a small, running V8 engine kit. (Requires AA batteries, not included)