These Avery TrueBlock Parcel labels are great for sending envelopes and small boxes. They cover information that is underneath, including text, logos and torn courier labels. You can save money on packaging materials, and still send a professional-looking package. This bulk pack is great for mass shipping. It's easy to add names, titles, addresses, barcodes and company logos that make sure your letters and parcels get to their destinations and look good to boot. When your designs are done, you can print professional-looking labels from your laser printer. So speedy and simple to use, these labels bring more satisfaction than you bargained for.