The Little Giant Alta-One Model 17 is the lightest 17-foot multi-use ladder on the market. The Alta-One is the ultimate in strength, safety and versatility, so you can count on quality performance for years to come. The hinge locks and telescoping sides let you safely use the Little Giant Alta-One as an adjustable extension ladder, A-frame ladder, staircase ladder, and as trestle-and-plank scaffolding system. Wide-flared legs, rubberized feet, and high-quality construction give you unmatched stability in any of its 24 unique configurations. Tip-N-Glide Wheels make moving and setting up your Little Giant even easier than before. The heavy duty non-marking orange wheels are ideal for indoor or outdoor use. Because it is constructed of aerospace-grade aluminum, the Alta-One is ultra-light and ultra-strong. The Alta-One is rated to hold up to 250 lbs on both sides, so it’s perfect for medium-sized jobs.