I have been using the Plastic Combs for binding my reports and client tax returns for over 25 years now. I have recently tried the Staples brand of these Plastic combs and have found the Staples products rivels the name brand and for less money. Plus I can purchase the sizes I need from my local Staples store without having to send away for them. This is always a plus come the end of the annual tax season when time is of the essence. If I do need a siz that my Staples store doesn't have in stock ; Staples will ship me the items I order on line usually in 2 days.
I teach a lot of classes and this way of binding the class instructions means that the instruction books will lie flat unlike stapled booklets. Stapled books beyond 4-5 pages have staples that can catch on fingers since I don't have a power stapler. But used with my Docubind Personal system the booklets come out professional looking and functional for my students. I use heavy cardstock for the covers punched separately and then punch 4 pages at a time for the 20 lb. paper. The resulting book looks great.