Protective sleeve are essential items when collecting and saving large currency bills. Sold in packs of 25, Guardhouse Sentry holders for large currency are 12 mil thick and measure 3 1/4 x 7 1/2 inside, while the outside measures 3 7/16 x 7 13/16 inches. Guardhouse Sentry holders are made of non-plasticized rigid vinyl and are designed to keep currency bills unharmed during long-term storage, at the same time as offering the collector great visibility of their bills.
