Price tags inform customers about the price of an item in such a way that it does not raise any doubts for the customer, being vital in the shopping experience. They contain plenty of information about the product, such as product name, name of the producer, weight or capacity, barcode/EAN, and information about whether a given product is on the shelf at a regular or promotional price. In the case of a promotional price, the promotion label should show the crossed-out previous price and a clear discounted price. Price placement also plays a very important role. The main point is that the price should be posted next to the correct product and not the product next to it to help the customer quickly verify the price.