The Chuckie! Rugged line is designed to withstand tough dogs and rough play. Rigid polypropylene core provides durability and strength, while the over-molded TPR ridges allow your dog's teeth to grip without puncturing it. The Rugged Flyer's ergonomic shape provides easy pickup and retrieval for your dog. The Rugged Bumper’s attached nylon straps on each end flap when the toy is shaken to stimulate your dog's natural instinct to hunt and shake prey. Both the Rugged Flyer and Rugged Bumper float, making them great for land and water play! Bright color provides high-visibility for dogs.