8-1/2'' x 11" Laser Cut Sheet, 20# White Stock, 1 Vertical Perforation 4-1/4" from Left (Carton of 2500). Printworks Professional pre-punched cut size papers are ideal for nearly every type of business or organization that does high-volume, high-speed printing. Printworks Professional papers have clean perforations and are guaranteed to run on all laser, inkjet, and digital printers and copiers. Perforated paper is commonly used for invoices and billing statements, notices, booklets and catalogs, coupons, gift certificates, direct mail applications, receipts, and church bulletins. Reams are poly wrapped with an easy open tear tape strip. This perforated paper comes with 5 reams per carton, for a total of 2500 sheets per carton.