【Thrilling Rollercoaster Adventure】Build an exciting theme park-style rollercoaster with 1707 pieces! This dynamic model features a 360° loop coaster, arched finish line, lap counter, and PIT service station for an immersive amusement park experience. 【Motorized High-Speed Action】Powered by an efficient electric motor and battery box (batteries not included), this roller coaster building set races on its own with just a press of a button—no manual pushing needed for realistic thrill-ride excitement! 【Authentic Theme Park Design】Experience professional track elements like steep drops, sharp turns, and a gravity-defying loop. The detailed structure mimics real roller coaster mechanics, inspiring future engineers and coaster enthusiasts. 【STEM Learning & Creative Play】Designed for ages 14+, this Mould King building set enhances logical thinking, patience, and engineering skills. A perfect STEM project to explore gear systems and kinetic energy principles while constructing a 53.8x38.3x31.2cm display-worthy model. 【Fun Family Bonding Activity】An ideal parent-child project! Assemble together and enjoy endless racing fun. Teach kids about physics while creating unforgettable family game nights with this interactive loop coaster set. Mould King Roller Coaster Building Blocks Set 11020(1707PCS)