This dog nail grinder was surprising quiet and with a chewy treat, my dog sat patiently while her nails were ground. The nails warmed up if held in place too long so did about 5-7 seconds on a nail, moved on and came back a few times per nail. Nice and smooth. My dog likes to stand up against me to get belly rubs so now no scratches from nails that had sharp edges from cutting as they are smooth now!