The OEM Dymo M25 Digital USB Postal Scale weighs envelopes and packages up to 25 lb. (11.34 kg) without a trip to the Post Office or mailroom. This scale connects via USB cable (included) to your PC or Mac, allowing you to use it with popular online mailing and shipping software, including Endicia InstaRate and DYMO Stamps software. Its compact size fits in busy workspaces and can be easily stored in most desk drawers. The LCD screen displays weight in an accurate, easy-to-read digital format, with options for lb./oz. or kg/g. Additional features include a hold function, tare function, and automatic shutoff to prolong battery life.