Set of 2 spherical magnets with special surface treatment (approximately 25mm in diameter) Hold the two magnets slightly apart in your hand and toss them upwards, and they will fall while making a "zee-zee" sound. This is also an educational toy that helps you learn about the properties of magnets and magnetic force. Use with caution, as it is dangerous if swallowed by small children. [Condition] There are areas where the coating on the surface has lost its gloss, but this does not affect use. Please understand that this is a used item, and refrain from purchasing if you are looking for a perfect product.