If you love DIY and marble run games, you’re going to have a lot of fun 

building this puzzle, and much more fun playing with it. 

You need no glue to put ROKR models together, 

which makes watching it working and moving even more exciting. 

You can assemble them at home on the table. 

All you need is your own hands, patience, and assembly instructions.

* Pre-cut wood sheets, easy to assemble

* Perfect gift for any occasion of all ages

* Learn principles of Science, Technology, Engineering and Mathematics