I picked this baby up from an art store counter display about 3 months ago because the design caught my eye and I've been using it pretty consistently ever since. The OLFA Touch-Knife is a spring loaded razor blade, concealed in a flat circular container. Since it isn't a typical pencil-like shape it is very portable and it has extra surface area for good leverage and accurate cuts. I use it for opening pretty much anything. I also use it when I'm crafting and it's the closest cutting tool within reach. Yesterday I used it to remove a splinter because it was the only thing around that was suitable for the job. An excellent combination of function and beauty.