Introducing the Decorative Strips Clear Stamp Set from Hero Arts! Hero's top-quality 4 x 6 inch clear stamp sets are proudly made in the USA from genuine photopolymer. This material is non-toxic, biodegradable, and ensures beautiful ink transfer to paper, delivering a true impression every time. Simply peel the stamp from its backing and adhere it to an acrylic block for convenient positioning. Mix and match the versatile designs to create stunning compositions. Cleaning up is effortless with water or stamp cleaner.