Brecknell Digital Postal and Parcel Shipping Scale &mdash; 35-Lb. Capacity Multi-range weighing for accuracy of letters Accommodates packages up to 35 lbs. Flip-up top to stabilize both tube and large flat mail Simple weight-hold feature to capture the weights of packages that cover the scale display USB interface (USB 2.0 virtual port) for PC software package is designed to work with Stamps.com PC software for printing postage from your desktop