"If you like the Little Giant Classic wait until you see the 4 Tread 24Way Little Giant Revolution XE. For starters, the Revolution XE is lighter-20% lighter than any competing multi-use ladder on the market. We did this without sacrificing any strength thanks to the Revolution XE's military grade, lightweight aluminium construction. Adding even more stability to the world's safest ladder was not easy. Nevertheless, the revolutionary Quad-Lock™ hinge system does just that. The Quad-Lock™ hinge locks into place with 4 for increased stability and overall safety. If that was not enough, the Revolution XE also features a redesigned Rock Lock™ system that makes adjusting your ladder quick and easy. Simply push the lock to release, adjust the ladder, and then tap to lock. It is simple, fast, and safe. "