The Bucky balls Neo Cube 5.0mm is an entertainment device like no other in the world. The Magnetic Cube is composed of 216 individual high-energy rare-earth magnets. This allows you to create and recreate an outrageous number of shapes and patterns. The Cube is literally a puzzle with billions of solutions. Your cube will provide you with hours and hours of unequaled entertainment!

Features:

1. Size of this ball is enough 5.0mm， 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.