This You Rock clear stamp set is the perfect addition to your craft projects! They peel off their backing and stick to any acrylic block making for easy stamping. They are made from photopolymer which is latex free, phthalate free, non-toxic and biodegradable. Details:You Rock themeLargest stamp measures approximately 2" x 3.13"18 clear stampsPhotopolymerFor use with acrylic blocks (sold separately)Coordinates with You Rock Die (sold separately)