Automatic Protection: The safety lock is an automatic protection device for the treadmill. When the switch moves out of the treadmill's sensing area, the treadmill immediately stops and emits a beep to help prevent falls during exercise.Applications: This magnetic suction safety switch is designed for electric treadmills that use round magnetic switches.Easy to Use: Compact and simple to install. During use, place the safety key into the designated slot on the control panel and clip the other end onto your clothing for convenient operation.Durable Materials: Safety keys are essential for maintaining proper treadmill function. This round treadmill safety key is made from high-quality ABS plastic and magnets, enhancing both durability and safety.Lightweight and Portable: This emergency stop device is lightweight and easy to carry, making it convenient for travel or outdoor workouts.Specifications:- Item Type: Treadmill Safety Switch- Material: ABS, Magnet- Gross Weight: 31g / 1.1oz- Rope Length: 92cm / 36.2in- Magnet Shell Diameter: 32mm / 1.3in- Height: 28mm / 1.1in- Magnet Diameter: 9mm / 0.4in- Single Column Diameter: 2mm / 0.1in- Distance Between Two Columns: 20mm / 0.8in (Note: The rope has slight elasticity. Manual measurement may result in small variations, which do not affect performance.)Package List:2 x Emergency Stop SwitchNotes:1. Due to manual measurement, please allow 0–1 cm size error.2. Due to differences in monitor displays, the actual product color may vary slightly from images shown.