Pecute Dog Nail Grinder, Rechargeable Electric Pet Nail Trimmer for Paw Grooming, Gentle and Painless Nail Clipper for Medium and Large Dogs (2H Quick USB Charge 14H Long Work Time)
It is very comfortable to used for my dog, easy to used and quiet, it doesn't bother the dogs when I'm grinding thier nails. Good and durable quality, highly recommended.