PiViT LadderTool from ProVisionTools - turns your ordinary ladder into a stable structure in seconds. It can work as a ladder leveler, elevator, shelf, stop, and even a tool stand: five functions in one. Can support up to 500 pounds - that's even more than the maximum load on most ladders. It has a non-slip surface and rubber grips, so you'll feel confident. With the PiViT LadderTool, you'll be able to work on high slope roofs, but note that it's not suitable for metal or tile roofs. This tool is lightweight, you can easily carry it around and install it without too much effort.