The new self-perpetuating SpaceRails are out of this world! This is a potentially never-ending spectacle, watch in wonder as the steel balls navigate an exhilarating ride of twists, turns and stunt sections. An amazing rail with loop the loop and elevator. It has two separate tracks and battery-powered elevator. The cool thing about this is space rail is that it has both an educational component and fun component. It does require some patience but is a great option to build with friends or a family member. The track can re redesigned and you can create new routes and speeds. The Level Four is the perfect marble run set for those who have graduated from the beginner Space Rail sets. Featuring over 20 feet of track, this extreme set has many stunts, including:-Descending Spiral-Horizontal Helix-Loops-And More! 

Product Features:

• Create a customizable roller coaster with extreme loops, flips, and turns
• Multiple Tracks: Allows for various layout designs for endless fun
• Steel Balls x 2: Enjoy racing steel balls along the dynamic tracks
• 26,000mm Rail: Long tracks for exciting and extended runs
• Battery Powered Elevator: Keeps marbles running continuously without needing a wall outlet
• Suitable for Ages 15 : A fun and educational STEM toy
• Build Time: 5-10 hours, great for engaging activities with kids or as a solo project
• Battery: Powered by 1 x 14G/R14 battery (not included)