The patented Flex Guard is a heavy-duty, flexible rail that offers support and protection to vital slide-out plumbing, wiring and hoses under the slide room floor. The Flex Guard straightens out during extension and bends in an arc as it contracts. Its unique design prevents sagging during slide-out operation that could cause stress and lead to breakage. Can be installed on any slide-out system that uses a 1/4" steel rod or swing arm for the same applicationAll kits come with 8" mounting post with washer and five Flex Guard clips