You know, the only thing new about this ruler, is the removable edge. Idea going on in head when I saw this. I'm sure there are something you could purchase and make your own edge for any ruler. I remember buying Folders for my kids when they had book reports and the plastic edge came off. Wonder if they expand enough to hold ruler. All you need is to cut it and it doesn't have to be exact length. I think I"m going to find something to make an edge for my existing rulers. Thanks for asking.