Crystal clear viewing of 2 3/4 x 3 7/8 sports cards Keeps sports cards of all sorts clean and safe Pack of 25 sports card 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 sport, and trading cards. Sold in packs of 25, Guardhouse toploaders for standard size cards are 12 mil thick and measure 2 3/4 x 3 7/8 inside, while the outside measures 3 x 4 inches. Guardhouse toploaders are made of non-plasticized rigid vinyl and are designed to keep sport or trading cards unharmed during long-term storage, at the same time as offering the collector great visibility of their collectible items. Transline offers the best wholesale prices for these popular 3x4 Guardhouse protective sleeve card holders.