NAIL FILE: The pet grooming tool comes with a nail file which files away rough or sharp edges for your pets comfort. SAFETY: The design of the blades greatly reduce the risk of injury to your pets and you can see where you a cutting clearly. There is a lock on the handle, which allows for safe and convienient. NON-SLIP RUBBER HANDLES: The non-slip long handles of the tool make it comfortable to grip. EASY TO USE: The dog nail clipper provides great leverage for fast effortless cuts, you can finish the grooming with ease. SIZE: L: Length-16.5cm; Length of the blade-28mm; Thickness of the blades-3.5mm. Ideal for the dogs above 16lb; S: Length-13.5cm; Length of the blade-35mm; Thickness of the blades-2.5mm. Ideal for the dogs & cats under 16lb.