Work your way through albert einstein's six square challenges by correctly arranging the set of wooden cubes. Designed to put your problem-solving skills to the test, this compendium features six different square puzzles inspired by einstein and other great minds who've made genius contributions to science and art. Each challenge has a different difficulty level, so you can start with the easier ones and build up to those that will even test expert puzzlers! Can you master this collection of puzzles which are as enigmatic and complex as the man himself? Recommended for 1 player, ages 8 and up. Made in china. Package dimensions: 9. 125 x 9. 000 x 1. 375 inches. Includes 16 wooden cubes, wooden tray. Recommended Ages: 8 Years And Up Use: Indoor Measurements: 9.125 Length/Inches Base Material: 100% Wood Care: Wipe Clean Country of Origin: Imported