Kong brand rubber dog toy. This natural rubber toy is essential for dogs with a strong bite. More resistant than the classic Kong but with the same characteristics to make it your dog's favorite toy: its superior resistance to bite makes the toy withstand your dog's bites and last much longer than other toys on the market, its irregular boat and the fact that you can put food inside it will entertain you for hours helping you develop your instincts. This toy is perfect for training, promoting good behavior and helps in cases of separation anxiety. Available in 4 sizes: S, M, L and XL. On this same page, further down, you will find the specific SIZE GUIDE for this product for more information on measurements.