Tips, children under 6 years old are not suitable for this toy. If it is a child under 6 years of age, it should be accompanied by an adult during the game.This Rubik's Cube with a link in the middle can be flipped and folded continuously to bring you endless finger fun and change different infinite shapes. When you are brainstorming, or when you are full of stress, you can fold it over and over again to ease your emotions.Relieve stress, suitable for children and adults of all ages, relieve stress and anxiety. Infinite Rubik's Cube can be used to relieve attention deficit disorder, hyperactivity disorder, and anxiety to a certain extent. Suitable for use when you need to concentrate on deep relaxation.Pocket size, small and light, easy to carry. High-quality ABS plastic Rubik's Cube. Made of high-quality durable non-toxic materials. The smooth surface and rounded corners are designed to protect you or your children. It is composed of eight small cubes, and each sub-cube is precisely processed and assembled to form the overall size of a large cube.The size is a cube with 4cm in length, width and height. Fresh colors further soothe your mood.