Choose the most secure labels that won't peel or curl with Avery shipping labels using Ultrahold permanent adhesive. Avery Ultrahold adhesive sticks & stays, unlike basic labels, & applies securely to a wide range of surfaces including envelopes, cardboard, paper, plastic, glass, tin & metal. Created with TrueBlock material, each label completely blocks out any text or colors underneath the label to make sure that your print is as clear as possible. These 5-1/2" x 8-1/2" labels are also resistant to damage from chemicals, scuffing, tearing, smudging & up to one year of outdoor UV light. Avery labels are heat & cold resistant, acceptable for food contact & can reach grade A barcode readability. Avery Design & Print makes it simple to customize labels from the comfort of your own home or business. The free browser-based software has all the tools you need to create labels for food containers, essential oils, health & beauty products & more. Try it out today at avery.com / templates. Please note that these labels are only compatible with laser printers.