Protective sleeve toploaders are essential items when collecting and saving trading card sheets. Sold individually, 30x40 Guardhouse toploaders are 12 mil thick and measure 30 1/4 x 40 inside, while the outside measures 30 1/2 x 40 1/4 inches. Guardhouse toploaders are made of non-plasticized rigid vinyl and are designed to keep trading card sheets unharmed during long-term storage, at the same time as offering the collector great visibility of their collectible items.