Follow the English instructions step by step.It takes about 4 hours to complete. Laser precision cutting, assembled by buckle, each part has corresponding code, which makes the assemble easier.
How to play
Shake the handle, the marbles would roll through the track over and over again.
English instructions+10pcs Steel Ball+7 Precut wood sheets+Sandpaper+Steell shaft+Handle+Screw nut+Shaft sleeve.