About This Compatible: With RFID chips inside the lables, compatible with DYMO LabelWriter printers 5XL, 550, 450, 550 Turbo, 450 Twin Turbo, 450 Duo, 4XL & Wireless Printer etc Specification: Weemay 30334 Rerurn Address Labels with RFID Chip. Replacement for DYMO LW 30334 S0722540 11354. Size: 2-1/4 in x 1-1/4 in (57mm x 32mm). Paper Tube Diameter:1"(25.4mm). 4 Rolls, total 4000 Labels (1000 Labels/Roll) Application: Replacement for DYMO LW 30334 S0722540 11354. Widely used on Packages, Envelopes, Mails, Letters, Parcels, Signs and Temporary Name Tags as Barcode labels, FNSKU labels, Return Address Labels, Bar Code, GTIN, EAN-13, UPC-A, Code-128, EAN/UCC-128, Code-39, ITF-14 labels Features: Avoid fade and smear. Prints crystal clear printings. Let your carriers easily scan barcodes Perforated: Perforated to allow easier separation between labels. Fold the printed labels together with the perforation to keep them organized Adhesive: Still reliable on extreme temperature. The patented adhesive provides long-lasting powerful stickness Overview Color : White Size : 30334:2-1/4" x 1-1/4" Material : Paper Brand : Weemay Finish Type : Uncoated