This Marching Spiders background stamp is from Picket Fence Studios and is part of the Halloween Collection. This clear photopolymer stamp will adhere to acrylic blocks and can be used with your favorite inks, markers, and embossing powders (sold separately). This stamp measures 3.75" x 3.5" and comes on a 4" x 4" clear acetate sheet for easy storage. This stamp is made in the USA.