Gentle. Easy to use. Gently removes plaque and food debris. Massages gums. Easy to use - just slip over finger. Ideal for puppies and kittens. Dishwasher safe. The Petrodex Finger Toothbrush was designed to provide a gentle, affectionate method of removing plaque and food debris from your pets teeth. Its unique design allows for well-accepted brushing for even the hard-to-reach back teeth.