Ravensburger GraviTrax: Bridges Expansion Set | STEM Toy for Kids Ages 8 and Up | Compatible with All GraviTrax Systems | Ranked No.1 Marble Run System in The U.S

Bridge the gap with the “GraviTrax Bridges Expansion” set and keep your marble run rolling!Explore the possibilities of connecting separate tracks with the “GraviTrax Bridges Expansion” set and get your marble over any ravine! Balance your marble on the narrow bridge that resembles a tight rope; control the marble's speed with the slow bridge; or roll out a new path for your marble to take with the roll-out bridge. It’s a snap to combine this accessory with any “GraviTrax Starter-Set” to experience the power of gravity and educational fun today!What makes a great toy? GraviTrax checks all the boxes! It’s a creative, modular, expandable track system that challenges children to use their imagination to design and build their own marble runs! Electronic-free, GraviTrax construction sets use STEM-friendly concepts while building critical thinking and problem-solving skills. Completely open-ended, every GraviTrax set has a boredom-busting variety of play options for hours of fascinating fun. Once the basics are mastered, simply add expansion sets and accessories to propel those metal marbles around the tricked-out track of your dreams!Comes complete with 3 adjustable-length Bridges, 2 long thin tracks, 2 long slow tracks, 1 long track, 2 medium tracks, 3 short tracks and instructions.Lasting durability for girls and boys ages 8 and up, it’s the learning toy children (and savvy adults) return to over and over again!

• [GraviTrax: Bridges Expansion] Bridge the gap with the “GraviTrax Bridges Expansion” set and keep your marble run rolling!
• [INNOVATIVE] The GraviTrax interactive track system allows you to design and build your own race tracks and experiment with gravity, magnetism, kinetics.
• [STEM TOY] Boys and girls ages 8 and up can experience educational and science play. The franchise has sold over 15.5 million units worldwide and has ranked as the No.1 marble run system in the U.S., according to the NPD Group.
• [COMPATIBLE] Easily extend play time - All sets are compatible and functional with all GraviTrax systems.
• [GREAT GIFT] GraviTrax is an a ideal holiday and birthday gift for creative, curious kids and adults who love to build.