This multi-award-winner celebrates 30 years of success! One of the first – and still one of the best – basic coding toys on the market. Operate the levers and pushbuttons, so the colored marbles roll down the tracks in the correct arrival box. A fun way to discover binary numbers. Includes a screen to cover the tracks and challenge the players 'ability. And with no loose pieces, this appealing maze is an ideal travel and waiting time toy! For ages 4 and up. WARNING: CHOKING HAZARD - Small Parts. Not for children under 3yrs.