The Revolution is designed to be the safest ladder on the planet. Since it's adjustable, the Revolution can be used safely on stairs, ramps, curbs, docks or other uneven surfaces. The Revolution is made using LiteWave(TM) aluminum technology, the very same material used in aerospace construction. So it's ultra-strong while remaining light and portable. PART NUMBER MODEL STEPLADDER MAX. HEIGHT STEPLADDER HIGHEST STANDING LEVEL EXTENSION MAX. HEIGHT EXTENSION HIGHEST STANDING LEVEL STORAGE HEIGHT STORAGE DEPTH WEIGHT 12017-801 17 5' 3' 11' 8' 3' 7" 10" 30 lbs 12022-801 22 7' 5' 15' 12' 4' 7" 10" 39 lbs 12026-801 26 9' 7' 19' 16' 5' 7" 10" 46 lbs Now with Dual Built-In Ratchet Levelers! Now you can work safely ' even on uneven terrain ' thanks to the all-new optional Little Giant Ratchet Levelers. The Dual Ratchet Levelers are installed at the factory and offers hands-free options to provide up to 8.5 inches of leveling adjustment on each leg. Simply push the levelers with your toe for a simple, stable setup. Work safely on uneven terrain Hands-free adjustments Nearly 8.5 inches of leveling adjustment per leg Adds only 3-lbs per leg to the total ladder weight Features LiteWave Technology & Light Weight Aluminum Construction For starters, the Revolution is lighter'20% lighter than most competing articulating ladders on the market. We did this without sacrificing any strength thanks to the Revolution's military grade, light weight aluminum construction. Work with the convenience of a 250 lb. rated ladder, yet still feel safe with the strength of a 300 lb. rated ladder. Redesigned Quad-Lock(TM) Hinge Adding even more stability to our safest ladder wasn't easy. But the revolutionary Quad-Lock(TM) hinge system does just that. The Quad-Lock(TM) hinge locks into place with 4 pins instead of 2 for increased stability and overall safety. Rock Locks(TM) The Revolution features a redesigned Rock Lock(TM) system that makes adjusting your ladder quick and easy. Simply push the lock to release, adjust the ladder, then tap to lock. It's simple, fast and safe. Trestle Brackets Two trestle brackets ($39.99 value) are included with your purchase and converts your Little Giant into secure scaffolding trestles. Makes a great companion to the Little Giant Ladder plank accessory.