Beautifully designed 2D and 3D brain teaser with extra-large components - test your skills! Using combinations of extra-large colourful connected balls, the challenge is to complete the designs from the enclosed booklet. Split into levels of difficulty from easy to expert, the 188 challenges get harder as you go, with only one solution to each mind boggling task. Use the 12 colourful chunky game-pieces to complete tricky 2D puzzles and cunning twisted 3D pyramids. Suitable for any age from 6 to 'very wise' - build that genius IQ!