Protective sleeve toploaders are essential items when collecting photos. Sold in packs of 5, art size Guardhouse toploaders are 12 mil thick and measure 18 x 24 inches. Guardhouse toploaders are made of non-plasticized rigid vinyl and are designed to keep photos unharmed during long-term storage, at the same time as offering the collector great visibility of their collectible items. sold in pack of 5