Illuminates Light - Illuminates Light the Bloodline in Colored Nails, So You Can Caught in the Right Spot! If the Light Do Not Work After Used for a Period of Time, New Battery Need to be Replaced Through the Battery Compartment. Note: It May Not be Able to Illuminate the Quick of Dark or Black Colored Nails. Comfortable Handle - Thick Handle Design Can Disperse the Compression Force When Clipping. Make You More Comfortable! Precise Cutting Blade - Pet Nail Scissors Blade Made of Hardened Steel, Quick-clip Precision Hardened Steel Blade Trims with Ease! Note: If the Blade Was Dulled After Used for a Period of Time, New Blade Need to be Replaced by the Blade Replacement Lever. If Encounter Blade Detachment During Use, Just Touch the Blade Replacement Lever