The Kong ChewStix Twist Bamboo Teething Chew and Fetch Dog Toy Screws into Kong Classic is a durable twisted stick chew toy made from dog-safe natural wood and rubber fusion, designed to satisfy dogs that love to chew sticks. Its threaded twist design not only provides an interesting texture for gnawing but also allows it to be screwed into the opening of a KONG Classic toy for an added challenge. Use it alone as a robust chew (the real wood content and tough construction stand up to extended chewing), or lock it into a KONG Classic to create a new tug-and-chew experience. This versatile chew helps clean teeth and gums while keeping dogs busy and happy. Available in Multiple Sizes