Barcode stickers can be great for many things like your amazon products, amazon barcodes, or just any product of yours in general.
Custom Barcode Stickers

The invention of the barcode in 1952 on a sticker made it more fast for commercial stores to sell to consumers.
Barcode stickers became commercially successful when supermarkets began to automate their checkout systems. The very first scanning of the Universal Product Code (UPC) barcode was on a pack of Wrigley Company chewing gum in June 1974.