Unlike Vinyl, Guardhouse Shield Polypropylene are 100% archival. Thinner, stronger and less susceptible to tearing and stretching. 12 Pocket Guardhouse Archival pages can hold and protect 2 1/2 x 2 1/2 photographs, coins, paper holders, flips... At a fraction of the price! Guardhouse Shield#: 13964032086. Size: 2.5x2.5 Pocket. Sold in Packs of 10.