Dymo LW Internet Postage Confirmation Labels (NWL30387) For anyone who needs to ship envelopes and packages for online purchases. These labels work with DYMO Endicia, eBay and other PC postage providers. These labels have a 3-part layout with recipient and sender address and delivery confirmation section. Prints 3 labels at once. Direct thermal print technology provides clear lettering without messy, expensive ink or toner. Packed in a roll, so you can print one label or hundreds with ease without the label waste that can come with sheets. Not compatible with DYMO Printable Postage or DYMO Stamps services.