and portable, which is more convenient to store and use, and you can take it when you go to the gym. It can be as an emergency stop for treadmill safety, suitable for professional and personal use. Made of ABS and magnet material, and practical for -lasting use. When , the safety lock is placed in the groove of the panel and the other end is clipped on the clothes, which is convenient to operate. A good gift for yourself, family, friends, co-workers, treadmill users, and people in need. Colour:Red Material:ABS+Magnetic Material Package Contents: 1x universal treadmill safety key 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.