Science Gift: The rainbow bracelet of the generation is more colorful! Movement under the light creates a rainbow effect, ideal for children & adults. With flow ring finally your child will enjoy a real fun and scientific toy. Interactive Toy: Moves along your arms and can be passed from one arm to another or to a friend's arm, effortlessly rolling down, exciting toy and exercise. Decompression and relaxation: Create your imagination with a variety of gameplay, wonderful stress and anxiety reduction, relax and solve stress and fears in everyday life. Easy to carry: folds flat and fits all. So you can share it anywhere fun. Size: 13cm in diameter Weight: weighs 70g Color: color Package includes: 1pc* magic bracelet