This letter slitter ruler is the perfect tool for the office! Not only are you able to open envelopes in one quick motion, you're also able to make measurements and draw straight lines. It even features a magnifier to make reading fine print even easier. This multifunctional item is made of plastic, measures 2-3/4" x 3-3/4" x 1/8", and comes in several fantastic colors. Add your company name or logo with one of our imprint methods and offer this at office supply stores and tradeshows. Get more attention on your brand with this great product!