This Frame Cuts and Clear Photopolymer Stamp Set, Winter Mail Critters Bundle is from Hero Arts. The stamp set features four critters with letters, a pile of letters to Santa Claus, another single envelope, a snowflake, a small heart, and four words/phrases. The die set cuts out all the images and sentiments except the small heart and snowflake. These stamps will adhere to acrylic blocks and can be used with your favorite inks, markers, embossing powders, and other crafting mediums (sold separately). The dies are compatible with leading die cutting machines (sold separately). These stamps and dies can be used for cards, scrapbook pages, tags, journals, and other paper crafting projects. The words/phrases in this set include happy mail, special delivery, From:, and To:. The stamps are non-toxic and biodegradable. These stamps are made in the USA.