MADE IN THE U.S.A! Catnip Crumples are great for tossing one at a time or several at once! The crumples continuously release scent whenever the paper is folded or scratched. Nano Burst Technology means small bubbles of catnip scent burst during play for a long-lasting catnip experience! Nano Burst Technology traps Catnip bubbles so that each time a surface is rubbed, buffed or scratched. thousands of particles burst and release Catnip scent. The Catnip is refreshed each time the cat plays and more bubbles burst, making for a long-lasting and extended release of Catnip molecules.