Strong and Durable: This fitness magnet key is made of high-quality ABS and magnetic material, providing sturdy construction that is resistant to damage, ideal for long-term use by runners. Strong Clip: This treadmill magnetic lock features a secure clip that easily attaches to any part of your clothing, offering convenience and ease of use. Easy to Install: Designed with a compact size and lightweight build, this treadmill magnet security lock is simple to install and replace. Easy to Use: This treadmill safety key is user-friendly; when the safety switch moves out of the treadmill's sensing range, the treadmill immediately stops and emits a beep sound, helping prevent injury during exercise. Wide Application: This universal ABS treadmill magnetic lock is suitable for use at home, in gyms, and other fitness environments, making it a practical choice for various settings.