The Small Things Poly Clear Acrylic Stamps were created jointly by Hero Arts and BasicGrey to coordinate with the Grand Bazaar Collection by BasicGrey. The stamp set measures 4" x 6". To use them, simply peel and stick to an acrylic block. These durable stamps are made from 100% photo-polymer and are pliable for easy positioning. They stamp accurately, are easy to store, and are non-toxic, latex- and phthalate-free. These stamps are made in the USA.