Put together a perfectly balanced bookshelf for our furry friend using a good dose of reasoning and sharp visual perception. With 40 gradually progressing challenges using up to 12 different books will help children develop dexterity, observation and logic. Challenge yourself and play solo or get some help from a friend. Details: 10 minute activity 40 puzzles Instructions on box For ages 8 and up Contents: Puzzle cards Books Leveler Clever cat Shelves