1. The treadmill emergency stop switch and start key with dual insert piece is an essential fitness equipment safety accessory. It ensures the safety of users by providing a quick and reliable way to stop the treadmill in case of an emergency. This key is compatible with various treadmill models, making it a universal safety key for treadmills. Simply attach the switch to the designated area on your treadmill, and you're ready to go. 2. Features 3. - Color: Red 4. - Material: Plastic, copper sheet 5. - Size: 14.60X6.00X1.80cm/5.74X2.36X0.71in 6. - Emergency stop switch: the emergency stop switch start key allows for safe and convenient control of your treadmill's start and stop functions 7. - Dual insert design: featuring a dual insert design, this key provides versatile usage options, making it easy to operate your treadmill 8. - Wide compatibility: compatible with various treadmill brands, this key ensures broad compatibility and seamless integration with your fitness equipment 9. - Fitness equipment accessory: enhance your treadmill's functionality and convenience with this essential fitness equipment accessory 10. - Durable materials: made from plastic and copper materials, this key is designed for longlasting use and resistance to damage 11. Package list: 1 x treadmill emergency stop switch