Use one label for postage or two together to add logo or promotional message. Stays secure with permanent self-adhesive. For Pitney Bowes postage machines 5675, DM3 Touchmatic 5705, 5640, 4150 and 5830. Label Size - text: 1 1/2 x 2 3/4 Label Colors: White Machine Compatibility: Postage Meters Materials: Paper.