47" Wide Ladder Stabilizer for Aluminum Ladders with Mar-Resistant End Caps and Can Hook Features: Increases the stability of your ladder For use on aluminum ladders of all duty ratings Fits aluminum ladders with side rails up to 3-5/16" high x 1-3/16" wide Mar resistant rubber caps protect work surface 48" span, clears most windows when repairing, painting, or cleaning, 10" standoff Specifications: 225 lbs duty rating For over 60 years, focusing on end user needs has driven Werner’s success. Our entire product design process from engineering to manufacturing creates a climbing system that ensures productivity, durability and safety for the user.