This 6" x 4" integrated laser label sheet is compatible with ShipStation software. If you are using ShipStation to create labels for your shipments, these labels provide an easy way to use any inkjet or laser printer to fulfill your orders and produce a clear and efficient shipping lable. The 1 up labels are 6" x 4", and made from 24# MOCR Stock on an 8.5" x 11" Laser Cutsheet. Integrated ShipStation labels come 1 Label / Sheet, 1, 000 Sheets / Carton.