JIAYLABEL size: 4x6 inches, with perforated line for easy peeling, 500 shipping labels per stack. Packet in a drawer box to ensure integrity Commercial Grade Upgrade Materials: The printing labels can print crystal clear image and easy-to-scan barcodes. Label paper is smooth and clean for perfect printing without jams or waste No BPA and BPS: Our printer label paper does not contain carcinogenic substances such as Bpa and Bps, which have certain effects on human health, label paper has passed authoritative certification tests Fade Resistant and Ultra strong adhesive: Our thermal printer stickers are designed to resist fading, smudges, and scratch, also have the features of waterproof and oil-proof. The label stickers have a permanent adhesive to ensure shipping and moving Strong Compatibility: The printable labels are compatible with thermal printers 4x6 inches, like Phomemo, Polono, Jadens, beeprt, Pedoolo, Jadens, iDPRT, Munbyn, Nelko, Rollo, Joise, except Dymo and Brother; Compatible with FedEx, USPS, UPS, DHL, Shopify, Etsy, Amazon, eBay, Paypal Wide applications: such as shipping supplies for small business essentials, industry, handling, mailing labels for envelopes and packages, packaging, postage label, inventory management, product identification, file organization, and custom personalized JIAYLABEL 4x6 Thermal Shipping Mailing Label Stickers Paper for Direct Thermal Label Printer，Not Compatible With Brother or Dymo