The Original Little Giant Ladder model 22 #10103LG is four to five times more durable than typical ladders, and it's built to last. The Little Giant is made of heavy-wall 6005-T5 aluminum, and while it possesses a workload capacity of 300 pounds, it has been tested to withstand four times that amount without structural failure. The Classic Little Giant replaces different sizes of step ladders, an extension ladder, 2 scaffolding trestles, and a staircase ladder. In fact, it would take nearly $600 to replace the capabilities of the Little Giant. Even then, you would still lack the versatility, durability, and storage benefits incorporated into the Little Giant Ladder System. The Type 1A Little Giant Ladder is our most popular model, and it comes with a LIFETIME WARRANTY. Comes with factory installed wheels.