Purple onion variety from Spain, size M and category I. It is presented in a bag: weight per bag of 0.500 kg, equivalent to the 500 g indicated in the title. The label includes the reference "The kg costs: €4.10" as price information per kilogram, while the described presentation corresponds to a 500 g bag. The onion is a traditional food in Mediterranean cuisine. The description recommends eating it raw and mentions the Spanish purple variety among different types of onions. Also noted, as general information, is that white onions are harvested in late spring and colored ones in late summer. For storage, it's recommended to keep it in a cool, dry place, out of light and not in the fridge. A preparation tip to reduce eye irritation when cutting suggests placing it in the freezer for 10 minutes, without extending that time to avoid loss of aroma and flavor.