Instincts by SmartyKat Tricky Tea Set of 3 release your cats inner instincts with lightweight floppy toy teabags that are 100% filled with HappyNip catnip and silvervine. HappyNip is our proprietary blend of pure natural catnip and silvervine, an ideal alternative for finicky felines who need a little extra excitement. Tricky Tea sparks the fun and gives your cat a satisfying hunt with safer and kinder prey.