If you are looking for the perfect product to store your slimline stamps, embossing folders, and dies, look no further! This package of 25 Slimline Stamp Cargo Sleeves is designed by Brutus Monroe and is part of the Foundations Collection. These envelopes measure 4" x 9" and are made of 6 mm thick sturdy plastic. These sleeves will help bring some organization to your most likely fast-growing collection of slimline products. These stamp cargo sleeves are made in the USA.