Camco Self-Stor Step - Mounts Under RV Steps to Stabilize Steps and Prevent RV Movement and Swaying, Lifts Up For Easy Storage After Use , One Time Installation (43671) Stabilizes RV steps and helps keep the coach from rocking Helps prevent sag and wear Heavy-gauge steel with a 3/4" solid metal screw thread has a 1000lb rating Self-Stor Steps can adjust from 8.5" to 14" Mounts under RV entry steps for safety, and swings up to store securely under RV step when not in use