1. The circuit is simple, reliable and practical 2. This kit is equipped with an acrylic plastic shell, which is not only beautiful but also effectively protects the circuit components, making it easy to demonstrate and play 3. This DIY kit is used for scientific research and experiments, and is not suitable for other purposes Colour:As Shown Material:PCB Due to different batches, there may be differences in product appearance and printed text, which will not affect use Package Contents: 1 * magnetic levitation module kit 1 * housing kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.