Product Features. 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 don’t 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. [Product Information] Product Name: Pulley Spring Door Closer Product Material: zinc alloy Product Size: Refer to the picture Product color: black Packing listPulley spring door closer *1 Cautions 1. Due to the long transportation time, the goods may be damaged during transportation, if the goods are damaged, please leave us a message through the official website immediately before sending comments, I will solve the problem for you. 2. Due to manual measurement, the size may have an error of 1-3cm. 3. The color displayed by different monitors may vary.