KONG® Naturals™ Premium Catnip Flakes for Cats stays fresh in a handy, resealable portable tin. Use as a standalone treat to refill KONG toys, sprinkle on toys and scratchers for a pinch of happiness, and encourage appropriate scratching behavior. Approximately 70% of cats over six months will respond favorably to catnip. Catnip is a natural, non-addictive herb. Shake well before use.