Dental health is very important for your dog. The Petosan Silent Power Toothbrush features: Battery-powered double-headed sonic toothbrush designed for optimal grip. Replaceable battery and head. 20,000 bristle movements per minute. Highly effective at removing plaque. Gentle and quiet to use - well accepted by dogs. Bristles angled at 45° towards the teeth and gum line. Cleans the inside and outside surfaces of the teeth at the same time. Small/Medium - Suitable for dogs up to 15kg in weight.