This is a very unique thin metal die from Hero Arts. This die is compatible with most leading die cutting machines and your favorite cardstock and papers (all sold separately). It can be used in two ways. It can be used as a cardstock silhouette or cut out and colored with your favorite crafting supplies and attached to a card front. This die measures 3.75" x 4". This die will give you a lot of creative dimensions to share with family and friends.