These clear stamps peel off their backing and stick to any acrylic block making for easy stamping. Simply apply your favorite ink and stamp crisp clear images! They are made from 100% photo-polymer which is latex free, phthalate free, non-toxic and biodegradable. Use the die for an added layer! This package contains Armadillo: a set of 17 stamps on a 4x6 inch backing sheet and four metal dies measuring between .625x.5 inches and 3x1.75 inches. WARNING: Choking Hazard. Not suitable for children under 3 years. WARNING: May contain items with sharp edges. Handle with care. Made in USA.