The Dogit Gumi 360 Clean serves purpose as both a fun toy & dental cleaner, featuring rotating ends that move around the dog's mouth to provide a complete 360-degree clean. The Gumi balls provide deep cleaning action as they move & shift against the teeth, scrubbers remove food & excess saliva to help prevent plaque build-up & bad breath, whilst soft waves gently massage & stimulate the blood flow to the gum line to help keep gums strong & more resistant to disease. Durable nylon ridges act like a toothbrush & help remove built up plaque. Available in 3 sizes (small, medium, large)