This Ambar Ideias Numismatic Bag with 20 compartments measuring 45x45mm is ideal for collectors who want to organize medium-sized coins clearly and securely. Compatible with 20x25cm covers, each compartment allows you to view the coin from both sides without risk of direct handling, protecting the pieces from oxidation and wear. The transparent and resistant material facilitates quick consultation of the collection, making this bag a practical choice for storing commemorative, antique, or current collectible coins. An essential accessory for anyone who takes the organization of their numismatic collection seriously.