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. Quickly and easily create your own personalized labels. This 250 pack of 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 laser 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.