http://ruleronline.org/ruler-measurements/ruler-measurementshow-to-read-a-ruler This is an online vitrual ruler(MM,CM,INCH), that can be adjusted to an actual size.That measures the size of your screen, and other online measuring tools Mon, 06 Mar 2017 10:53:44 +0000 hourly 1 https://wordpress.org/?v=5.3.2