Avery White Shipping Labels with Paper Receipts for Inkjet Printers, TrueBlock Technology, 5.062 x 7.625 Inches, Pack of 10 (88127) Works with popular internet shipping software and services, including USPS Click-N-Ship and Shipping Assistant, Stamps's website Online Postage, UPS's website and Fedex's website You wont have to waste another label printing your shipping receipt Just one pass through the printer and youve got both the label and receipt in your hand TrueBlock Technology completely covers everything underneath Labels are bright white for professional results every time