Features: The safety lock is an automatic protection device for the treadmill. When the switches are outside the treadmill's sensing area, the treadmill will immediately stop working and emit a signal to protect the user from falling during exercise. Magnetic safety switches for electric treadmills with round magnetic switches. It is portable, easy to use, and easy to install. When in use, the safety lock is placed in the grooves on the panel and the other end is attached to the clothes, which is convenient to use. Specifications: Type: Switch Lock Material: ABS, Magnets Dimension: S: approx. 1.8 cm/0.71 in L: approx. 3 cm/1.18 in Color: Red+White, Red+Black (Optional) Quantity: 1 pc Note: 1. Please allow 0-1 cm error due to manual measurement. Please make sure you do not mind before you bid. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 pc Switch Lock