Avery TrueBlock Shipping Labels are great for sending large envelopes, parcels, mailing tubes and smaller boxes. These Avery Shipping Labels are completely opaque, thanks to our TrueBlock technology. They cover information that is underneath, including text, logos and torn courier labels. You can add your company logo and recipient details to the label using Avery software, and completely cover the existing information. You can save money on packaging materials, and still send a professional-looking package. This bulk pack is great for regular shipping.