Microperforated paper is ideal for healthcare forms, medical charts, invoices, statements, remittance coupons and more. ColorLok Technology delivers bolder blacks and vivid colors with inkjet printing. 20 lb. paper is compatible with high-speed copiers, laser and inkjet printers and offset presses. Jam-free performance means less downtime. Letter-size sheets are custom laser-cut and microperforated at 5-1/2".