Camco 43671 Self-Stor Step Reviewhttp://tinyurl.com/mym63rl Camco 43671 Self-Stor Step Stabilizes RV steps and helps keep the coach from rockingHelps prevent sag and wearHeavy-gauge steel with a 3/4" solid metal screw thread has a 1000lb ratingSelf-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