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 and non- toxic.Details:Protea Flowers designs9 clear stamps on a 4" x 6" inch backing sheetNontoxicFor use with acrylic blocks (sold separately)