I am looking for a thing! It is a type of ruler. Are any of you looking for a thing that you can describe but cannot find? That as soon as you know the word for it you'll be off like a light but until then you are sitting in frustration staring at incorrect search results? Currently looking for: Spoiler: Drawing ruler that rotates at 0 does there exist a ruler that rotates at 0cm/"/whatever? googles just giving me instructions for rotating rulers in like clipstudipo and photoshop I want to be able to alight the 0 on a physical piece of metal/wood/plastic to a dot on my paper and then move the other side of the ruler to my destination and look back at the 0 and it's still on the dot whereas right now I align the dot and move the other side and look back at the 0 and put it back at the dot and then adjust the end of the ruler back to the destination and repeat until they actually alight until I slip and move the ruler and I am frustration perhaps a ruler with a channel down the center? you put a pencil at 0 and rotate around that?