The Nerf Dog Nylon Vortex will entertain you and your dog for hours on end! Play "tug of war" with your best friend, or enjoy an action-packed session of toss and retrieve. It's fun that'll last! That's high-performance durability from Nerf Dog! Weather & Water Resistant: Constructed from heavy duty woven nylon. Interactive: the Squeaking football head paired with the durable tug body creates hours of fun. Made To Last: Nerf-quality materials allow this toy to be lightweight and durable