These are a popular and handy card used by many stamp dealers and collectors. The cards are made of white Bristol with crystal-clear pockets to hold stamps. Card size 108 x 70mm ( 4 1/4 x 2 3/4″) with a pocket size of 90 x 52mm (3 1/2 x 2″). There is space for entering prices and catalog numbers. Available in white and black background and in boxes of 1,000 or packages of 100.