4-Step Aluminum Camper Scissor Steps - These light weight steps are manufactured from heavy gauge aluminum for maximum strength and durability. These stairs will self-adjust to the terrain and fold for easy storage. They comes fully assembled and are easy to install with a simple, universal mounting bracket. They have an optional hand rail available (sold separately - special order) for when you need that extra stability. This has 4 Steps that measure 18 inch wide x 6 inch deep. When extended the vertical height of these stairs measures between 31 inch and 39 inch high depending on the terrain.