12 Rolls; 150 Labels per Roll of DYMO-Compatible 99019 1-Part Internet Postage Labels (2-5/16" x 7-1/2") -- BPA Free! Buy this genuine HouseLabels' product with confidence -- a 100% guarantee of satisfaction is provided. This product is genuine ONLY if the HouseLabels' logo is behind the release liner of each label AND each roll is packed in an individual mini-carton, with the HouseLabels' logo, to protect each roll from sunlight and scuffing. Each white label is blank and ready for your printing. 2-5/16" x 7-1/2" | Rectangle | White | Direct Thermal | BPA Free | Permanent-Adhesive | 150 Labels per Roll These labels are the easiest internet postage labels to apply to any shipment as only ONE label, not multiple labels, are required for each package. Print from your favorite shipping programs, such as Endicia.com, Stamps.com, PayPal, or eBay. See details "For Endicia/DAZzle Users" below in the Products Description section. DYMO Printers: 320, 400, 400 Duo, 400 Twin Turbo, 450, 450 Duo, 450 Turbo, 450 Twin Turbo, 4XL, SE300, SE450  CoStar LabelWriters: XL, XL+, BC, BC+, TURBO, SE200, SE250, ACII 200 / ASCII 250 All labels sold by HouseLabels for use in DYMO LabelWriters are tested to ensure that they fall within DYMO specifications  Labels are smooth and bright white for professional results  Labels are smudge-proof as well as water and oil resistant  All temperature, strong permanent adhesive is excellent for all general purpose labeling applications  Each roll is individually packed into a protective black polybag and then placed in a mini-carton to protect it from dirt, sunlight and scuffing.