Mr. Sai is highly recommended - magnetic suspension gyro! It is a close relative of the magnetic levitation pen that was previously popular with the martial arts martial arts. It is also a super fun science toy that is similar to the perpetual motion machine! https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_f952ea5d-b407-42fe-8950-02a5f426fc20.gif https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_6664a18c-3324-438a-95bc-a4147934962a.gif Put the gyro on the platform and fully suspend it. Just do it with your hands. It's that simple and won't fail! Then the hand of the gyro is gently turned by hand, and the anti-gravity pen is immediately rotated in the air. The black and white interlaced pattern immediately produces an amazing flashing effect, which is dazzling. And because of the small resistance, you can turn in the air for a long time. https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_9b3a16d3-a4b0-434b-b034-b99bdda82d64.jpg Combine practical and fun science toys To ensure the age of young and old, to make the liberation of boring office life, magnetic suspension gyro is definitely your best investment! https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_b4b12e04-d6f1-4a41-8846-7f715995efea.jpg Product specifications: ►Commodity size: φ4.5 x 14 cm (gyro size) ► Packing size: 14.5 x 9.5 x 7 cm ► Material: magnet, plastic ► Manufacturing location: China Precautions: ► Do not fall ► The gyro is easy to roll in a circle. If not, put it on the base. ► If the floating gyro falls after floating for a while, check the table for a slight tilt on the non-horizontal plane.