Stress Relief: A variety of colors of beads, cultivate color discrimination ability, can be flexibly rotated, help relieve the stress from daily life and work. Hand Eye Coordination: This magic bean puzzle toy can exercise teens hand eye coordination, concentration, patience, strategic thinking and problem solving skills. Easy To Play: By sliding the bead and twisting the two half circles, the colors of the small beads align up and down with each other, can shuffles the colors and reorder them. Material: Rotating ball puzzle toy is made of great aluminum alloy material. Use with Confidence: The magic bean rotating cube is exquisite in workmanship, pays attention to details, the surface is smooth and round, and it will not scratch the skin, so you can use it with confidence. How to Use: Byslidingthebeadandtwistingthetwohalfcircles,thecolorsofthesmallbeadsalignupanddownwitheachother. Specification: Item Type: Rotating Ball Puzzle Toy Material: Aluminum Alloy Product Diameter: Approx. 50mm / 2in Package List: 1 x Ball Toy 1 x Manual