Concord & 9th-Clear Stamps. Made in the USA from the highest quality photopolymer, these clear stamps provide a crisp image and simplify multi-step stamping. Use with any acrylic block (sold separately). This package contains Petals & Pallets: twenty-five clear stamps on one 5.75x8 inch backing sheet. WARNING: Choking Hazard- keep out of reach of children. Made in USA.