The special grooves of the toy can help clean the teeth and interdental spaces of your dogs. Exercises the teeth and the little nubbins on the bone help clean the teeth of plaque. At the same time, the gum will be gently massaged by playing with this ball. Size Guide:Diameter measures approximately 75 mm / 3 inch - Suitable for small dog breeds, up to 22 lbs. Package Includes: 1* Pet Tooth Cleaning Ball Caution: Proper supervision is advised when playing with all toys to ensure no accidental swallowing. This toy should be regularly inspected to ensure there is no damage. If any damage is seen the toy should then be discarded.