Each cup holds a pre-measured single serving of dried catnip leaves and flowers, grown and processed in North America. The lid is designed with holes so the catnip can be shaken out directly onto a toy, scratching post, or bedding without spilling loose nip everywhere. The individual cup format helps keep unused catnip fresh and aromatic until it is ready to be used. Twelve cups come packaged together, making it easy to refresh a cat's favorite play spots on a rotating basis. The catnip itself contains no additives, offering a simple, natural way to encourage feline activity and play. No assembly or preparation is required before use.