usage method: 1. when you trim your pet nail clipper, firmly hold the sole of your pet. 2. quickly tighten the handle and cut off a small part of the nail at one time. avoid cutting tiny blood vessels fromyour pet #39;s nails to make blood bleed. 3. do not trim too much fingernail at one time. whien cutting, use a safety gear and trim gradually so as not to injure the dog #39;s toes by too much pruning. 4. if your pet #39;s nails are too long, cut a small part of the first clip and trim a small portion of the nail every 7-10 days until the nail reaches the right length. 5. after pruning, file supporting the use of the rubbing burr on the nail, until smooth.