Safe and Professional: Our pet nail grinders are designed exclusively for using on pets. Instead of cutting the nail, nail grinders file the excess nail down with a grinding head, leading to a smoother and more even result. Our grinders have advantage that they will not make nails bleed, they also keep your skin, cloth, floor and furniture safe from snags and scratches. We suggest you use clipper to trim your pet's nails before using our grinder. Three Size Ports:You can choose an appropriate port depending on your pet's nail sizes and hardness. For larger pets, the cap can be removed to expose the entire wheel to easily grind large nails. It is safe to use our product with or without the cap. Super Mute Motor: After the survey of a large number of veterinary experts and pet owners, we foud that the pet nail grinders with DC motor has more power with quick grinding , but also comes with great noise, which it's likely to scare the pet, thus making them reluctant to have their nails trimmed, our grinder are designed to be small, convenient, environmental friendly, and low-noise. Protective Design: Our pet nail grinder has protective designation, If there is too much pressure detected, either on yourself or the nails of your pets, the grinder will automatically stop spinning. Which means, the grinder is not broken, but protecting you and your pets. You can simply releases or decrease the pressure, it will start spinning again. USB Charge: Our grinders comes with a USB wire for your charging convenience, the grinding wheels are durable, replaceable, and can be removed for cleaning.