Unlock your imagination with Block Chain! Each set of unique brainteasers includes 3 different types of puzzles, with 3 distinct levels of play. Block Chain cubes can be expanded and rearranged to form lots of different face combinations can you discover the correct solution? The three puzzles in each set are thematically linked and feature fun, original artwork. Collect them all! Single player game for ages 8 and up. WARNING: CHOKING HAZARD – Small Parts. Not for children under 3yrs.