Automatic Protection: The safety lock serves as 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 accidents during exercise. Applications: This magnetic suction safety switch is designed for electric treadmills and compatible with models that use round magnetic switches. Easy to Use: Compact and user-friendly, this safety lock is simple to install and operate. Place the safety key into the designated slot on the control panel and attach the other end to your clothing for convenient use. Durable Materials: Treadmill safety keys are essential for safe operation. This round safety key is constructed from high-quality ABS plastic and integrated magnets, enhancing both durability and safety. Lightweight and Portable: This emergency stop device is lightweight and easy to carry, making it ideal for use at home or while traveling. Specifications: Item Type: Treadmill Safety Switch Material: ABS, Magnet Gross Weight: 31g (1.1 oz) Rope Length: 92 cm (36.2 in) Magnet Shell Diameter: 32 mm (1.3 in) Magnet Shell Height: 28 mm (1.1 in) Magnet Diameter: 9 mm (0.4 in) Diameter of Single Column: 2 mm (0.1 in) Distance Between Two Columns: 20 mm (0.8 in) Note: Slight elasticity in the rope; manual measurement may result in small variations, which do not affect functionality. Package List: 2 x Emergency Stop Switch Notes: 1. Due to manual measurement, please allow 0–1 cm size deviation. Confirm you accept this before purchasing. 2. Due to differences in monitor displays, the actual product color may vary slightly from images shown.