THESE BALLS ARE NOT MAGNETS, they are made of ferrous steel and have a beautiful chrome mirror finish. In the tin, you will find 12 balls varying in size along with a set of black triangular paperclips and one badass strong rare earth magnet that holds everything together. This crazy strong magnet will allow you to use the tin as a magnetic base to hold the paperclips on the lid for quick access and help prevent the balls from rolling away. Add this set along with your POLAR Pen to explore a whole new world of possibilities.

Nothing says fun like balls of steel.