Wright Products standard-duty pneumatic (air pressure) door closer is designed for out-swinging light-to-medium weight storm, home, or security doors. Use a single closer for light to medium weighted doors or paired (one on top and one at the bottom) for heavier storm and screen doors. This standard-duty-use door closer has a high level of durability that can withstand repeated opening and closing throughout the day. Specs: .89 pounds and 15.75 inches long.