Ultimate Techno-Balls 920 Pieces
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About Ultimate Techno-Balls 920 Pieces
Techno-Balls may very well be the granddaddy of all marble runs. These cleverly crafted, power-driven marble runs are not for sissies. Ideal for the mechanically-minded guy (or gal), Techno-Balls will guarantee hours and hours of fun. Build the tower, attach the post, mount the motor, fix the cogs, link the chain, wind the track, and tune the runners. Finally, add the balls and watch them go and go and go...