Blank address labels, blank return address labels on sheets for laser and inkjet printers.
Amazon.com : 6 Rolls 2 Inch Circle Direct Thermal Sticker Labels, Round Printer Label Dot Sticker for Color Coding, Envelope Seal, Inventory, Business Labeling, Compatible with Rollo, Zebra (Vivid Color) : Office Products
SendPro® C200 Postage Meter Machine | Pitney Bowes