4" x 6"(A6 100*150MM) . 500 /1250/2000 shipping labels per stacki am using the 10,000 pcs type ,if need can chat with meTips: It is only suitable for thermal printers and NOT for laser or inkjet printers.Waterproof and Oil-proof ] Smudge-Free and Resists Scratches, Water, Dirt, Dust, and Grease. Blank 4x6 mailing label with the perforated line for easily peeling off.The thermal labels use upgrade material that prints crystal clear images and easy-to-read barcodes. and labels use premium-grade adhesives that long-time stick to package surfaces.IT WILL NOT CURVE TOGETHER FOR BULK ORDER PRINTINGConvenient and simple to utilize, each clear label has a perforated line. Fanfold labels are likewise simpler and quicker to reload than rolls.============================================================================================Kindly double check before placing an order to avoid inconvenience on both ends. Please feel free to visit us.