[ Specification ]: 1/2 in x 1 in (13mm x 25mm) Extra Small Labels 2up - Black on Blue for DYMO LW 30333 S0722530 11353 - Paper Tube Diameter：1"(25.4mm) - 6 Rolls & 6000 Labels (1000 Labels/Roll) [ Increased Visibility ]: Using black on Blue colored labels can make the text or image stand out and be more visible, which can be helpful for labeling products, packages, or items that need to be quickly identified or located. [ Compatible ]: Suitable for DYMO LabelWriter printers: DYMO 450, 450 Turbo, 450 Twin Turbo, 450 Duo, DYMO 4XL & DYMO Wireless Printer, 400, 332, Zebra and most of the thermal label printers that the print width can be adjusted to 1 inch. ▇ Warm Tips ▇: Not compatible with DYMO 550 & 5XL printers that request RFID chips. Also, do not support Rollo and Munbyn printers that hold labels outside the printer and require a width of at least 1.57 inches. [ Multi-purpose Labels 2-Up ]: ½ in x 1 in (13mm x 25mm) labels replace for DYMO LW 30333 S0722530 11353 are multi-purpose labels (2-up). Barcode labels and FNSKU labels are also applicable. Widely used on packages, envelopes, mails, letters, parcels, signs and temporary name tags. [ Adhesive ]: Still reliable on extreme temperature (14℉~369℉). The patented adhesive provides long-lasting powerful stickness. No more shipping lost caused by labels peel-off.