Roller coasters are mesmerizing for kids of all ages, and the new Techno Trax Dominator offers kids a “real world” coaster experience! The Dominator edition replicates a real-life roller coaster, while your Coaster cars travel through the fun park full of drops, twists, and turns as it makes its journey! The motorized chain with fun "roller coaster theme park" sound effects automatically returns your coaster to the top of the track where another exciting journey begins! Complete with over 300+ parts to build this large impressive set, the detailed online instruction manual is very colorful and easy to use. A fantastic product that supports STEM! Ages 8-99 years.