Last design: optimized cutting angle This Clipper is perfect for dog nail trimming for dogs and cats precise and sharp blade provides clean and safe pet nail trimming. The spring mechanism provides uniform pressure makes action easier and smooth Security Promised: taking into account their protection dogs, these professional Nail clippers include a spacer security to prevent nails from pets too short to be cut . In addition, this dog accessories also includes a safety lock protecting their pets fixed cutter in the closed position when not in use