1. Package Contents: You will receive a limited range of 1 steel cable and 4 screws. This door closer is induction. When you forget to close the door, it can automatically close the door behind you. 2. Automatic Door Stopper: The multifunctional high-adhesion automatic door closer can automatically close the home door, interior door, explosion-proof door, and commercial door. Prevent pets from sneaking into your room. Never worry about pets dirtying your room again! 3. Pull: The quality rope has passed 50,000 stretch and rebound tests. It has a strong stretching force and is suitable for a vault door or a door with a slightly strong closing force. For example, wooden doors and metal doors, residential and commercial doors, closed exterior/interior doors. 4. Easy to Use: The installation method is simple and easy to use. Simply use the screw to fix the automatic induction door in the corresponding position. 5. Application: This automatic steel rope door closer is suitable for closed doors or gates. Open the door, wooden doors, metal doors, residential and commercial doors, close the exterior/interior door, and open the door. This can solve the problem of doors closing in different places or excessive friction.