Easy to Install - The Spring Door Closer can be used on doors up to 150 pounds. Ideal for internal garden, external doors & gates or shed doors. Easy to adjustable spring loaded tension. Please Pay Attention to the installation direction: follow the instructions - arrow towards the door direction Keep Quiet and Safe - Automatic closing and latching, maintaining quiet and security. During the break, you dont have to worry about your family members escaping from home or your pet dogs, cats running into your room. Convenient Door Closer - The closer arm of the safety spring closer can swing a full 180 degrees. Use these door closers to convert hinged door to self-closing door, you can easily and quickly operate. Adjustable Closer - Non-handed, these spring door stopper has adjustable closing speed. Allowing them to be used on both left and right handed swinging doors. Includes - Surface mounted spring-loaded door closer with instruction, tension rod, sliding plate and hole plugs to cover adjustment holes in closer body after the required tension is set.