Feature:1. Unique function-This cube can enhance children's sense of space and enhance children's memory. You can try to expand your brain power. Exercise the brain, improve memory and hand skills.2. For all ages-Twist and rotate the sides of the cube so that each of the six faces has only one color. Release people's life and work pressure.3. Safe material-Green design, safe and reliable, ABS material, non-toxic and harmless, absolutely safe to human health.4. Skill development-The compact design and smooth feeling can improve your memory and hand flexibility, stimulate your imagination and creativity, and are suitable for testing your mental skills and challenging your patience. It can even avoid dementia.5. Perfect gift-Classic Cube challenges your thinking and problem-solving skills. No matter where you are, you can spend leisure time with your loved ones. The ultimate Christmas/birthday gift for kids, friends, and family.Specification:Cube chemical element periodic table third-order cube learning formula.Whenever you pick up the cube, you will enter the magical world.This classic puzzle game will never go out of style. Christmas/birthday gifts for children, friends and family.Specification:Color: black, whiteMaterial: ABSPackage List:1*CubeNote:Due to the different monitor and light effect,the actual color maybe a slight different from the picture color.Please allow 1-2cm differs due to manual measurement.