Standard 4x6 inch size (101.6 x 152.4 mm) perfect for shipping, mailing, and barcode labeling. Designed for eCommerce sellers, warehouses, and small businesses to streamline order fulfillment. Includes 2 rolls with 250 labels each, giving you a total of 500 labels. Ideal for high-volume shipping operations without frequent replacement, saving time and increasing efficiency. Premium self-adhesive backing ensures labels stick firmly to boxes, poly mailers, and envelopes. Perforated edges allow quick, clean peeling for faster packing workflow. Direct thermal paper produces sharp text and high-contrast barcodes for accurate scanning. Resistant to water, oil, scratches, and fading for long-lasting readability.