>>20393203I found that offer on French amazon and it says it's pvc. It's definitively not safe for coins. It cause that greasy green "rot" on silver and it can literally dissolve the surface of non-precious or billon coins. But you only see impact after few years. It's a ticking bomb. That's why all serious coin/banknote storage stuff have huge "non-pvc" label on it. You should only buy accessories from reputable European or American companies.