This is a roll of Zebra RFID thermal transfer labels made of polyester, in 3.875 x 1.1875 inch (98.4 x 30.2mm) size, each embedded with an RFID inlay (referenced part numbers 10040771RM/10040772RM) for combined barcode-and-RFID asset or inventory tagging. Polyester stock with permanent adhesive is chosen for its durability against moisture, abrasion and chemical exposure compared to paper labels, making it suited to industrial, logistics or outdoor-adjacent tagging where labels need to survive handling. It's a coated label designed for thermal transfer printing (requiring a compatible ribbon) rather than direct thermal, and ships on a 3-inch core to fit standard RFID label printers such as Zebra's own RFID-enabled printer line.