• lightweight • stable entry to and exit from your rv stores securely right inside the door • twist handle to release the steps adjustable feet level the steps on uneven terrain available in select retail supercenters added stability entering and exiting stepabove and folds up into doorway durable black powder-coat finish 34"-36" threshold height works with 3-step models with adjustable feet in rear works with 4-step models with adjustable feet in rear innovative design lets the step operate through a wide range of ride heights without the need to adjust • 13" xl top step tread depth provides extra-large landing coming in and out of your rv • threshold panel behind the top step protects the trailer sidewall from damage • aluminum treads hold up against the elements • 8.5" lower tread depth • includes floor backing plate for use on laminated floors fits 30"-36" door fits 30"-36" door integrates a lift assist strut that makes lowering and raising your solid step legs and feet tuck neatly out of the way on back of step • wide range of ride heights with adjustable leg extensions • steps stay parallel to ground reducing potential for slipping or falling