At Printed Office Products, we seperate our printing into to categories, Envelopes & Sheetfed. The Envelopes category is simply all envelopes, while the Sheetfed category handles everything else. For more info on either of these two categories, follow the link below, or give us a call at (714) 674-1900 and one of our customer service representatives will assist you with any questions you may have. • Envelopes • Sheetfed