Original 216 piece Bucky Balls with blue square storage case. These are extremely powerful magnets that were banned for sale for awhile because of their strength. See all the info that I posted in the photo section about what all they can do. Really small but fun for adults to use to build and be creative with. Please do not let children play with these, they are dangerous if they would swallow them!! All the balls fit in the 1 1/2" x 1 1/2" blue storage cube. Used with a bit of wear on some balls but still in good condition. Features: • 216pcs 5mm magic magnetic balls, high magnetism, buckyball. • The amazing magnetic desktop! You can't put it down. • Be flexible, you can build and engineer limitless shapes and structures. • Helpful to develop children's IQ and spatial imagination. • Note: Contain small parts, please do not for kids under 6 years old! And the children under 14 years old should be accompanied by adults.