【Waterwheel Coaster】Beautiful excellent product. Build your own working roller coaster model from real wood! The roller coaster is full of dips and turns with some engineering and physics manipulation. So once you've built your roller coaster, you can spin marbles on it!

【How it works】With the hand crank, you set the gears in motion and watch the roller coaster spin the marbles to the bottom. up and release them on the track. This gave you the opportunity to explain gravity, engines, and many other concepts.

【Complete Set】It's a self-assembly model kit and everything you need comes in the package, you don't need any additional materials. Don't be afraid to be confused by so many details, you just need to assemble it step by step with our English instruction. Do it with patience and confidence

【Meaningful Educational Project】Craft model can open a new world of creativity, knowledge, and fun. It's a good idea to spend a nice time with your family and friends together, enjoy leisure time and relax. Turn boring evening time into a special moment for you and your family

【Wonderful Gifts】It is an ideal and creative gift to surprise friends, families, birthday/Christmas. A good choice for someone who is a DIY lover. It looks great and beautiful to display on your table, showcase makes your home more beautiful.