Feature:1. Automatic Protection: The safety lock is an automatic protection device for the treadmill. When the switch is outside the treadmill's sensing area, the treadmill immediately stops working and emits a signal to prevent falls during exercise.2. Applications: Magnetic safety switch for electric treadmills is suitable for electric treadmills with rounded magnetic switches.3. Easy to Use: It is compact, easy to use, and easy to install. When in use, the safety lock is placed in the grooved area of the panel and the other end is attached to the clothes, which is convenient to use.4. Durable Materials: Safety keys are extremely important for maintaining efficient operation of any treadmill. The round treadmill safety key is made of premium ABS and magnets, which increases their strength and safety.5. Lightweight and Portable: This treadmill emergency stop device is lightweight and portable. You can take it with you when you need to go out and exercise.Specification:Item Type: Treadmill Safety SwitchMaterial: ABS, magnetGross Weight: 31g / 1.1ozProduct Size: Rope length: 92cm / 36.2in, magnet shell diameter: 32mm / 1.3in, height: 28mm / 1.1in, magnet diameter 9mm / 0.4inDiameter of a single column: 2mm / 0.1in, distance between two columns: 20mm / 0.8in(The rope is slightly elastic, manual measurement allows errors, does not affect use).Package List:2 x Emergency Stop SwitchNote:1. Due to manual measurement, please allow 0-1cm error. Make sure you don't mind before bidding.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!