Extra Wide Jaw Curved Blades: These are very sharp on this toenail tool. The strong concave wide jaw allows these tough nail clippers to be used as a manicure or pedicure tool Heavy-duty Coated Alloy: Reduces the weight of this large toenail clipper compared to 100% stainless-steel models Unique Lever: The design reduces the pressure needed to clip your thick, fugal, or tough toenails The Kohm CP-120L sharp, curved, wide jaw blades can open to 15mm but we suggest one of our medical-grade, professional chiropody or podiatry style "Toenail Nippers" for deformed nails due to fungus which can provide more control For Use: In professional settings such as nail salons, as well as at home by young adults, men, women, seniors, athletes, and everyone in between who suffer from thick nail growth which can be caused by a fungus, age, or a host of other conditions. These big, tough toenail clippers can be used by right and left-handed adults.