This gravity powered logic maze is sure to put your visual perception and reasoning skills to the test. The colorful, translucent towers can be arranged in a plethora of visually stimulating structures but, for each challenge, you’ll have to think carefully to build a path that will successfully carry your marble to its target. 60 challenges, ranging in difficulty, making it fun for beginners and challenging to master. For 1 player. From ThinkFun, for ages 8 yrs-adult.