Item Type: Treadmill Safety Key Material: ABS and magnet Size: Rope length approx. 92cm / 26.22in, magnet shell diameter approx. 27mm / 1.06in, magnet diameter approx. 15mm / 0.59in Characteristics: Treadmill safety lock, automatic protection, magnetic suction, safe, compact, easy to use, easy to install, compatible with fitness equipment Function: Magnet safety key helps protect users from injury during exercise by acting as an automatic shut-off device for the treadmill High Quality Material: Made of durable ABS and magnet material, resistant to wear, strong and long-lasting Wide Application: Universal magnetic safety key compatible with most treadmill models, designed for extended use Easy Operation: Clips easily to clothing for secure connection, simple to install and use Portable: Lightweight design with compact size and 92cm rope for convenient carrying