Welcome to the jungle! GraviTrax Junior's Jungle Starter Set brings marble-building magic to little engineers ages 3–7. With oversized pieces perfectly sized for small hands, kids design and construct their own thrilling jungle-themed marble runs. Watch their faces light up as balls roll through the tracks they've created! This interactive system sparks imagination and builds critical thinking skills through hands-on play. The set includes everything needed to get started—baseplates, marbles, curves, slopes, a seesaw, and adorable jungle decorations. Made with sustainable wood bioplastic, it's a toy you can feel great about giving. Easy to assemble with endless layout possibilities, it delivers hours of engaging fun. Expand the adventure with themed add-on sets whenever you're ready. Perfect for birthdays, holidays, or anytime you want to inspire creative play!