Welcome to our store High quality rainbow magic cube, a simpler version of the stickerless magic cube with a compact, fast and smooth design that never jams. Super handy and reliable. Made of original and eco-friendly plastic material, non-toxic, harmless to human and environment, reasonable size (diameter 70mm), fits hands well and can be easily carried anywhere you want. A very interesting rainbow puzzle to exercise logical thinking, color sensitivity and hand coordination, improve patience and improve mental ability; Ideal gift and stocking filler for everyone, as it is perfect for children to develop their intelligence, for adults to kill time and relieve stress. How to play: Similar to a traditional magic cube with a tile puzzle. There is a hole in the ball with no smaller ball inside, you can move a small ball into the empty hole and keep mixing the balls. Then you need to know how to restore the color ball to suitable color holes.