Avery White Internet Shipping Labels with TrueBlock technology make shipping easy. TrueBlock labels have a unique silver backing making them completely opaque. Now you can cover old packaging information including text, logos and torn courier labels and recycle old boxes saving your time and money. The label format is 199.6 x 143.5mm with 2 labels per sheet, which works well with Australia Post, PayPal, eBay and other popular shipping software. With our FREE and easy-to use software Avery Design & Print online, you can easily create your shipping labels. The software also supports mail merge, serial numbers and QR / barcodes for all of your shipping needs.