Features 1,ABS Material: The safety switch of running machine is made of ABS, strong and not easy to damage, suitable for longterm use by runners 2,Firm Clip: It can be easily clipped to any part of the clothing and is firm. Easily clipped onto almost all types of clothing, it is simple and convenient to use 3,Easy to Install: The safety key works perfectly on most treadmills, and is small, lightweight and easy to install, important for maintaining the efficient operation of any treadmill exercise. 4,Automatic Protection Device: This lock is the automatic protection device of the treadmill. When the safety switch goes beyond the treadmill's sensing area, the treadmill will stop working immediately and an alarm will sound to protect the user 5,Application Crowd: Running machine safety switch is very suitable for people who regularly exercise on the treadmill Specification Item Type: Running Machine Safety Switch Material: ABS Weight: Approx. 33g or 1.2oz Color: Red Cylindrical Part Size: Approx. 38x6mm or 1.5x0.2in Package List 2 x Running Machine Safety Switch Note: 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.