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'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's toes by too much pruning. 4. if your pet'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.