Mad Cat Shrimp Taco Stuffer Play Mat crinkles and enagages your cats senses. Combined with the potent catnip and silvervine, playtime lasts longer. With fun accents such as tempting feathers! The adorable mat folds in half for more compact storage when not in use. Mad Cat Catnip contains pure North American catnip for a strong, aromatic fragrance that drives cats wild! Silvervine is a natural plant in the kiwi family that has two cat attractants compared to catnip’s one. Silvervine creates a similar reaction to catnip but affects more cats!