HERO ARTS-Basic Grey: Repositionable Rubber Stamps. Made from all- natural rubber to give a precise stamped impression; cling stamps are usable with any acrylic block (not included). This package contains Bold Blooms: a set of four cling stamps in a 7-1/2x5-3/8 inch package. Latex free; phthalate free; non-toxic; biodegradable. Made in USA.