5x5 The world's #1 brain-teasing puzzler is still going strong with billions of puzzling combinations, but only one solution! Scramble the colored squares on this addictive and multi-dimensional cube. Then twist, turn, and rotate to match up the colors again on all 6 sides! Can you master the mysteries of the Cube? Can you improve your time once you solve it? Pit yourself against the ultimate brain teaser! FOR ALL AGED It helps to increase the intelligence of the kids, to release the working pressure of the adults, to help prevent a decline in memory of the elderly. Suitable for beginner and professional players. Enjoy hours of fun with you family and friends.