NEJE 5mm Magnetic Balls Beads Sphere Cube Puzzle Neocube Intelligence Toy - Black (341 PCS)
Features: 1. Size: 3.0mm Magnet Grade: N35; 2. This product are balls with excellent technology it is not easy to fade after using. Can stand Long-lasting friction and strong antioxidant ability. 3. This ball passed SGS safety test. 4. For adults only. These are so super strong they should be kept away from children.