Classic V8 Engine - Equipped with L motor and a battery box (need 6 AAA batteries, not include), its compact design can achieve high power output in a limited engine compartment. This is an excellent structure that balances performance and space utilization. This engine model kit is good for adults and kids. Practical Realistic Model - Delivers the action of a classic car engine with powerful pistons and interactive cables! Watch the motor fan spin and make realistic engine sounds with the visible V8 engine model kit, making it the perfect STEM toy for curious minds looking for a fun blend of education and entertainment. Detailed display - Transparent cylinder head design shows how the internal mechanical structure and unique valve train work together. Precise piston movement, refined turbochargers and refined exhaust systems. You can be creative, think logically, and improve your motor skills all while having fun. STEM Item for Kids - DIY engine building kit for boys and girls ages 14 and up. Such as birthday/Christmas/New Year/Easter etc. This V8 engine model is a good choice. Professional service - The engine model is made of ABS material, which meets the standards for children, is safe and non-toxic, and can be used with confidence.