Usage Tips:Item Type: Treadmill Safety SwitchMaterial: ABS, MagnetGross Weight: 48g / 1.7ozColor: Red .wang-edit-text{ font-family:'Arial' important } .wang-edit-text table { border-top: 1px solid 000 border-left: 1px solid 000 } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000 border-right: 1px solid 000 padding: 3px 5px } .wang-edit-text table th { text-align: center } 1Rugged and Durable: This treadmill safety switch is made of premium ABS and magnets, which are sturdy and wear resistant, long service life. 2Working Principle: The safety switch, also known as the safety lock, is an automatic protection device for the treadmill. When the safety switch leaves the sensing area of the treadmill, the treadmill stops working immediately and emits a prompt sound, which plays a protective role to prevent the user from falling and being injured during exercise. 3Circular Magnetic Switch: Magnetic suction safety switch for electric treadmill with circular magnetic switch, safe treadmill key, extremely important to keep any treadmill exercise running efficiently. 4Lightweight: This treadmill starter key is compact, lightweight, easy to use, convenient and practical, ideal for running enthusiasts. 5Easy to Operate: When in use, the safety lock is placed in the panel notch, with a strong clip, it can be easily clipped to the clothes, easy to operate.