Avery® White Rectangle Labels with TrueBlock® and Sure Feed® Technology are the perfect solution for shipping labels and mailing labels, product labelling, gift-giving, crafting, identification, organization and more! The permanent adhesive adheres reliably to paper, plastic, wood, glass and other smooth surfaces without curling or falling off. If you plan to reuse boxes or need to relabel something, you can count on TrueBlock® Technology to completely cover everything underneath the label! Plus, Sure Feed™ technology can deliver a more reliable feed through your printer, preventing misalignments and jams. These white 2" x 4" shipping labels are an excellent choice for application to envelopes, boxes, pouches, and much more. They are jam-free, smudge-free, and compatible with both inkjet and laser printers. Need personalized labels? Easily customize these labels with free templates and designs at Avery Design & Print Online .You can even use mail merge within the design tool to combine names, addresses, logos and even barcodes into one-of-a-kind label designs. Simply import data from Excel®, Outlook® and more.