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 and compatible with models 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 safety key is made from high-quality ABS plastic and integrated magnets, offering enhanced durability and reliability.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 Product Dimensions: Rope Length: 92cm / 36.2in Magnet Shell Diameter: 32mm / 1.3in Height: 28mm / 1.1in Magnet Diameter: 9mm / 0.4in Diameter of Single Column: 2mm / 0.1in Distance Between Two Columns: 20mm / 0.8in Note: The rope has slight elasticity. Manual measurement may allow for small variations, which do not affect functionality.Package List: 2 x Emergency Stop SwitchNotes: 1. Due to manual measurement, please allow 01 cm size error. Confirm you are comfortable with this before purchasing. 2. Due to differences in monitor displays, the actual color of the item may vary slightly from the images shown.