Also known as hatch springs, these supports are commonly used on hatches and other top-opening lids. Raise the lid to extend the spring, which props the lid open—an internal cable keeps the spring from overextending. Press the center of the spring to release the hold and close the lid. To secure the lid in a closed position, use a latch or lock (not included). These supports are rated for maximum lid weight—do not exceed the weight listed. They can be used individually but should be used in pairs for lids longer than 24". Both are reversible for right-side or left-side mounting positions.