Not your basic label. UltraHold permanent adhesive is guaranteed to stick and stay put on cardboard envelopes paper glass or metal. Avery address labels won t lift curl or fall off like other brands. This pack of 1 000 shipping labels is excellent for shipping and mailing jobs as well as for creating custom labels for gift tags crafting party favors and more. Easily and efficiently create your own personalized labels with these Avery Shipping Labels with TrueBlock technology. Our TrueBlock technology lets you cover up everything underneath the 2x4 labels so you can reuse boxes and block out markings and mistakes for a professional appearance on the bright white labels. These address labels are optimized for inkjet printers so you can easily print brilliantly bold colors and crystal clear text without worrying about printer jams or ink smudges. You can also effortlessly personalize your printable labels with logos graphics or images using the free shipping labels template and designs on the Avery site.