Crystal clear viewing of 6 3/8 x 3 7/8 postcards Keeps postcards clean and safe Pack of 25 postcard sleeve holders per box All-new sealed 12 mil thick means great protection Long sterm storage safe! Protective sleeve toploaders are essential items when collecting and saving postcards, or photos. Sold in packs of 25, these Guardhouse postcard toploaders are 12 mil thick and measure 6 3/8 x 3 7/8 inches. Guardhouse toploaders are made of non-plasticized rigid vinyl and are designed to keep photos and cards unharmed during long-term storage, at the same time as offering the collector great visibility of their collectible items. Guardhouse Toploaders#: 091037246189. Size: 6 3/8 x 3 7/8. Sold in Packs of 25.