1Designed with Catnip: This retractable cat feather toy is designed with catnip ball inside, the aroma can effectively relieve your cat's anxiety and boredom, and let them have fun. 2Great Way to Exercise: With this hanging door cat toy, cats will love the feather stick and won't be able to stop jumping, catching and chasing feathers. It's a great way to give your cat plenty of exercise. 36.6ft Long Elastic Cord: This retractable cat toy is equipped with 6.6ft long elastic cord. Adjustable buckle of elastic cord allows desired height. This cat toy is lightweight, soft and do not contain harmful material. 4Durable Material: This retractable cat teaser toy is made of nontoxic and durable feather materials, which can better arouse the cat's nature, and keep the cat healthy. 5Adhesive Hook: This doorway hanging teaser toy is designed with adhesive hook, which makes it more fixable, suitable for many places and thicker door frame, and it won't fall off easily.