1. Strong and Durable: This exercise magnetic key is made of excellent ABS and magnet material, which is sturdy and not easily damaged, suitable for runners to use for a long time. 2. Strong Clip: This magnetic treadmill lock comes with a strong clip that can be easily attached to any part of your clothing, making it both simple and convenient to use. 3. Easy to Install: This magnetic treadmill safety lock is small and lightweight, making it very easy to install and replace. 4. Easy to Use: This treadmill safety key is very easy to use. When the safety switch is outside the treadmill's sensing area, the treadmill will stop working immediately and emit a beeping sound to protect the user from falling and injuring themselves during the exercise process. 5. Wide Application: This universal magnetic ABS treadmill lock has a wide range of applications and can be used at home, in gyms, etc., which is very practical.