Coin Collecting Flips Saflip 2.5 x 2.5 Mylar Archival 50 Pack Free USA Shipping

Saflip brand Mylar flips by E.T. Kointainer are the standard in archival safe flips suitable for long-term protection. They contain no oils or other additives and will not corrode or cloud your coins like other flips can. They come packaged in poly bags of 50 flips to keep them free from contamination. The 2.5x2.5 size is the size required by most grading services.Most of the double pocket coin flips today are made of vinyl, the common name of polyvinyl chloride (PVC). These PVC flips are available in both "soft" and "hard" versions and both types are dangerous for storing coins. The chemicals that can bleed out of the vinyl and the hydrogen chloride gas that the vinyl emits are corrosive to coins, causing sticky green slime, cloudy appearance and microscopic pitting of the coin's surfaces. This is why museums don't use vinyl of any kind, because museums know there is no such thing as safe vinyl.In 1979 E&T Kointainer Co. began researching an inert, museum quality double pocket coi