Petlinks Zebra toy for cats Enhances your cat's play thanks to the extra long feathers. Activates the excitement of searching for cats, and encourages interactive play and bonding with pets It contains Silverline, which is a mixture and has a stronger effect than wild mint, which makes the reaction faster. Made from recycled plastic to create a fiber filling. All cats have different reactions to catnip: Kittens do not react to catnip until after 9 months of age, and not all cats react to it.