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. This package contains Oh Happy Day: a set of nineteen clear stamps on one 4x6 inch backing sheet. Measurements: oh happy day sentiment - 3 5/8" x 3/4" ; bravo sentiment - 2" x 1/2" ; arrow image - 1/4" x 2 1/2". Made in the USA.