The original Kong is highly recommended by veterenarians, behaviourists and dog professionals. This super bouncy red natural rubber dog toy is irresistable to most dogs. Kongs can be stuffed with food and treats to help prevent boredom and separation anxiety. Freeze the Kong with its contents for extra work! Kong STUFF'N pastes and treats are available, or you can come up with your own fillings. Kongs are available in 5 sizes.