The Leuchtturm Numis Euro Numismatic Pouch, 24 compartments, 16.5-26mm, reference 338425, pack of 5 units, is a filing sheet specifically designed for euro coin sets. Leuchtturm is a German brand founded in Hamburg in 1917, considered a world leader in philatelic and numismatic collection systems, with a catalog of over 6000 items covering more than 140 collecting areas. Made of transparent, acid- and plasticizer-free film, it allows you to see the coins on both sides without removing them from the sheet and without risk of oxidation from contact with chemicals. The 16.5 to 26mm range corresponds exactly to the diameter of euro coins in circulation, from the 1 cent coin to the 2 euro coin, distinguishing it from the Numis single-compartment sheets of the same brand. It is a preferred option for those who collect complete sets of euro coins by country.