Discover the fascinating world of physics and engineering with this versatile ball and water track from Masterkidz! The set of 92 pieces allows children to create unlimited route combinations, where they can watch the balls roll on the tracks and the water flow through specially designed channels. It's not just fun, it's a real learning lesson - kids learn the principles of gravity, fluid flow and the basics of physics in a hands-on way. Characteristics: - Modular design allows you to create your own water/ball track - 2-in-1 functionality: The set can be used as a ball track and a fairway - High quality workmanship ensuring durability and safety of use - Compatible with all STEM boards The set includes: - 3 Troughs 40 cm - 3 Troughs 60 cm - 1 Rain trough (dripping) 100 cm - 1 Trough with outlet 100 cm - 2 Water retention walls - 2 Fans - 24 Screws - 16 Mounting supports - 16 Mounting Clips - 16 End Caps - Large Water Wheel - 2 Funnels - 5 Colored Balls Product Develops: - Social Skills - Creativity - Imagination - Motor Skills - Logic Set Compatible with: Wooden Wall Whiteboard XXL Scientific Creative STEM WALL Outdoor ME29348 Set XXL STEM WALL 2in1 Creative Board with Sandbox ME30849