The Dymo LabelWriter 2 Part Internet Postage Labels consists of a 2-part label system. It is perfect for printing postage for logo envelopes. Just print, peel and stick the adhesive labels to packages for clear and easy addressing. One roll is included, with 150 2-part large postage labels. Each label has a large destination address part (with enough room for the destination address, a logo and rubber-stamps or special handling instructions) Designed to work with Dymo's own Endicia system as well as with other online postage providers.