One of the key features of this emergency stop key is its plastic, alloy and rope materials, features a strong magnet that ensures it stays securely attached to the treadmill. This makes it durable and long-lasting, even with frequent use. Additionally, the key is designed to be easy to use, with a simple insertion process that allows users to quickly start or stop the treadmill. Features -Color:Black -Material:Plastic, alloy, rope -Size(black clip):5.80X3.10X3.00cm/2.28X1.22X1.18in -Size(red block):4.00X2.30X1.80cm/1.57X0.90X0.71in -The design of the product is durable and , making it suitable for frequent use over a long period of time. -The operation of the product is simple and convenient, ensuring that it can be easily used by anyone. -The product is compatible with multiple treadmills, making it versatile and suitable for a wide range of users. -In case of an emergency, the product provides immediate safety protection to ensure the well-being of the user. -The magnet clip of the product ensures a secure attachment and easy access, making it convenient to use. Package list: 1 x Treadmill Key