The Oh Bowl dog bowl for medium to large dogs is the world's first Oral Health Bowl designed to help reduce bacteria, slow feeding, clean your pets' tongue and freshen your dogs' breath. Developed by vets, this dog bowl features raised rubber tips inside that help to scrape your dogs tongue and clean off any bacteria at the end of the meal. This in turn helps to remove odour-causing bacteria and fight bad breath, encourage healthier teeth and gums and stimulates the tongue to increase saliva production which also leads to improved gum and teeth health. The bowl is approximately 23cm x 27.5cm and is made from food grade PP and TPR rubber. It is completely dishwasher safe and is suitable for medium to large dogs and can hold up to 1 litre of dry or wet food. To encourage extra licking you can add a few drops of tasty liquid to the bowl before you put the food in. It is also a great boredom buster and you can spread your dog's favourite treat such as yoghurt, soft meat or milk which helps to increase licking which encourages the release of endorphins which relaxes and satisfies pets.