Instincts by SmartyKat Tricky Tea Set of 3 release your cats inner instincts with lightweight floppy toy teabags that are 100% filled with HappyNip Silvervine and Catnip. HappyNip is a 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.