Feature: 1. DOUBLE INSERT DESIGN: Compatible with popular brands like for JX, for ZXCH, and for ISPO, this security key features a double insert design that ensures a snug fit for various treadmill models. 2. MAGNETIC: The compact and user friendly magnetic design allows the key to securely attach to any part of your clothing. It is not only easy and convenient to use, but also very strong. 3. AUTOMATIC DEVICE: It is an automatic mechanism, which immediately halts the machine and triggers an alert when the security switch moves out of range, effectively preventing falls or injuries during workouts. 4. EMERGENCY STOP: Designed with your security in mind, simply pulling out the key during any unexpected situation will cause the treadmill to stop instantly, allowing you to exercise with peace of mind. 5. PEACE OF MIND: With our treadmill security key, you can confidently work out. This essential accessory helps protect you from accidents and ensures a secure workout experience. Specification: Item Type: Treadmill Security Key Material: ABS Package List: 1 x Treadmill Security Key