CART
You could call the CyberCube a puzzle, but that label doesn’t really do it justice. Traditional puzzles are flat, static and formulaic. The CyberCube is none of those things. It was invented by Nicholas Powell, a magnet lover who had the idea to build a symmetrical cube-shaped object using highly magnetized spheres. He sent some of the cubes to his friends, who started building their own creations with the spheres, and that got the CyberCube community rolling.
The CyberCube arrives in cube form, with 216 magnetized spheres organized in 6×6 tiers. With their super strong pull, these spheres can be manipulated into any shapes you can think of — once you get the hang of the magnetic forces. 
Wrangling the spheres back into cube form is challenging but fun. For a more creative workout, you can shape the spheres into 2-D objects such as a chain or a snowflake, or construct 3-D volumes such as a pyramid, motorcycle or crown. If you’re trying to banish stress, just kick back and enjoy the feel of the sleek spheres passing through your fingers as you peel, twist and align them. The possibilities are enjoyably endless.
— Beth