Item Type: Treadmill Safety Switch Material: ABS, Magnet Gross Weight: 31g / 1.1oz Product Size: Rope length: 92cm / 36.2in, Magnet shell diameter: 32mm / 1.3in, Height: 28mm / 1.1in, Magnet diameter: 9mm / 0.4in Diameter of a single column: 2mm / 0.1in, Distance between two columns: 20mm / 0.8in (The rope is slightly elastic. Manual measurement allows for slight error, which does not affect use.) 1. Automatic Protection: The safety lock is an automatic protection device for treadmills. When the switch moves out of the treadmill's sensing area, the treadmill immediately stops and emits a beep to help prevent injury during exercise. 2. Applications: Magnetic suction safety switch designed for electric treadmills with round magnetic switch compatibility. 3. Easy to Use: Compact and simple to install. Place the safety key into the designated slot on the treadmill console and clip the other end to your clothing for convenient operation. 4. Durable Materials: The round treadmill safety key is made of high-quality ABS plastic and magnets, providing enhanced strength and reliability for safe treadmill operation. 5. Lightweight and Portable: This emergency stop device is lightweight and easy to carry, ideal for users who travel or exercise away from home.