LITTLE GIANT 15417-318 - VELOCITY, Model 17 - 300 lb/136 kg Rated, Aluminum Articulated Extendable Ladder with RATCHET LevelersIf you need a rugged, do it all ladder, the Velocity from Little Giant Ladder Systems is the perfect piece of climbing equipment. This lightweight, multi position ladder will help you get stuff done faster and more efficiently than the average stepladder. The Velocity is a multi position ladder that can be set up as an A frame ladder, extension ladder, staircase ladder, 90 degree ladder or trestle and plank* scaffolding. Easy to use Rock Lock