This 12 piece clear photopolymer stamp set, Winter Mail Critters, is from Hero Arts. This 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. These stamps will adhere to acrylic blocks and can be used with your favorite inks, markers, embossing powders, and other crafting mediums (sold separately). These stamps 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:. These stamps are non-toxic and biodegradable. These stamps are made in the USA.