Kong brand rubber dog toy. This green natural rubber toy is shaped like a square and is perfect for medium and large dogs. This toy is fantastic for the following reasons: its resistance to bite makes the toy withstand your dog's bites and last much longer than other toys on the market, This toy makes sounds when biting it for more fun. its shape makes it bounce irregularly and the yellow circles have a different texture that will entertain you for hours helping you develop your instincts. Available in two sizes: S and L. On this same page, below, you will find the specific SIZE GUIDE for this product so that you can find the right size for your dog the first time.