Petlinks Feather Flips Cat Toys feature two stylish plush balls with feathers - they are a feline household must. They are lightweight and easy for cats to bat, toss, and pounce. Detachable fluttery feathers give your cat something satisfying to hunt! The toys contain HappyNip - an exciting blend of silvervine and catnip that excites even the most finicky of cats. Silvervine, a wild-growing herb foraged in the mountains of Japan and China, has a strong natural effect on cats, even on those that typically don't respond to catnip. Extensive testing led us to find the perfect blend. Silvervine and catnip was created as an ideal alternative for finicky felines who need a little extra excitement! Silvervine and catnip is more potent than catnip by itself, and is as pure as can be! Most cats respond to catnip with a burst of energetic activity followed by a calm mellow period. Our catnip is produced without chemicals or any other fillers, and is grown on our own catnip farms. Petlinks products enhance the way that people and pets live and play together. The innovations behind our thoughtful, fun, and effective products are driven by consumer insights, extensive research, and thorough testing. Kids and pets often share the same space in the home and will have access to each other's toys. That is why we design products to meet child safety standards; ensuring kids in the home are safe, whether they are two-footed or four-pawed! We utilize recycled and sustainable materials wherever possible. If you are dissatisfied with the product, please reach out to our customer service at: customerservice@worldwise.com (email) or 415-721-7400 (phone). Please read all packaging instructions, warnings and cautions. Packaging may contain small parts; discard after opening.