Description: This magical magnetic levitation top is a learning toy, which is conducive to improving children's operating ability and cultivating interest in learning. This magnetic levitation top can test the patience and perseverance of children, and is conducive to the intellectual development of children, and it is very suitable as a gift. Made of plastic, iron and plastic, it is very durable to use. The length of this rotator is 3.7cm and the width is 3.3cm. And the length of the stand is 12cm, the width is 12cm and the height is 2cm. It is suitable for kids, children, education, gift, and so on. Item Name: Rotator Material: Plastic,Iron,Magnet Features: Magnetic, Easy to Operate, Creative Size Details: Size: Rotator: 3.7cm x 3.3cm/1.5" x 1.3" (Approx.) Stand: 12cm x 12cm x 2cm/4.7" x 4.7" x 0.8" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Working Principle: The floating point of the flying saucer is constant under the action of the magnetic force F, and the size of G is increased or decreased accordingly by the adjustment piece, so G = G1 + G2 (G1 is the weight of the flying saucer, and G2 is the weight of the gravity adjustment piece.) Package Includes: 1 x Rotator 1 x Stand 1 x Transparent Plate