This a solid product, well thought out, battery endurance is amazing, not much noise so your furry friend won't be scared. Easy to use, this saved my life, I have a rescued hairless Peruvian and Shitzu mix, and she HATES nail clippers, she can't see them close to her. I even bought at the same time I bought this grinder a guillotine-style nail clipper to try that one also, but nothing, she hated also. But then, I tried the Casifor Nail Grinder, and she was fine with it, not afraid of it. I could give it 10 stars out of 5. This is more suitable for her also because her nails are black, and but a nail clipper, one mistake is your last with that dog, they'll hate it. With the nail grinder, you can see the progress and where to stop when you see you are close to the quick.If you are looking for a great nail grinder, this is the one.