Each and every Yeowww! toy is completely filled with fabulous catnip. 100% stuffed FULL of premium, organically grown catnip. No cotton fillers, no plastic pieces, and certainly none of that cheaper ‘toy grade’ stuff. After all, they are catnip toys – shouldn’t they be filled with catnip? We think so and filling them to the max with Yeowww!® Catnip gives you the best value.