This pet nail grinder is gentle and painless for paw grooming, trimming, shaping, and smoothing for dogs, cats, rabbits, and birds. It is portable and rechargeable, including USB wire, pet nail grinder is easy gripped, light-weighted, and friendly design with a powerful engine that is perfect for grinding your pet nail and helping you to trim their claws smoothly. You can trim your pet's nails professionally at home without any stress. Strong and replaceable: Grindstone with high hardness, strong and durable, diamond grindstone is replaceable. Long-life motor: Use time is more durable, with strong power, fast speed, and easy to grind your pets nails. 3 size ports and painless: The dog nail trimmer has three size ports, which are suitable for all pets. The small port is for small pets, the medium port is for large pets. The large port would be more effective for grinding nails freer and faster. Quiet and low vibrations: Pet nail grinder adopts unique technology with low noise and low vibrations, gently removing thin layers of the nail with a soft sound. Pets will not be afraid any longer. Charge 2 hours and work 5 hours: Dog nail clippers come with a USB port cable, charge 2 hours will be full and lasts 5 hours working. Convenient and rechargeable.