Short description of A Ruler for Windows 2.2: A Ruler for Windows is a free on-screen pixel ruler and reading guide. It provides you your choice of a woodgrain, stainless steel, clear see-through plastic or yellow construction ruler and reading guide - plus you can design your own custom skins. A Ruler for Windows is fun to learn and very easy to use. You are welcome to use A Ruler for Windows for free on as many computers as you would like.