Crystal clear viewing of 22x28 documents such as posters or art Keep your art, posters, or other memorabilia clean and safe Individual pack of 1 22x28 poster size topload holder 12 mil thick sleeves provides better protection than other sleeves in the market All-new sealed poster size topload holder Protective sleeve toploaders are essential items when collecting and saving posters or photos. Sold individually, Guardhouse 22x28 toploaders are 12 mil thick and measure 22 x 28 inside, while the outside measures 22 1/2 x 28 1/4 inches. Guardhouse toploaders are made of non-plasticized rigid vinyl and are designed to keep posters and photos unharmed during long-term storage, at the same time as offering the collector great visibility of their collectible items.