Nail nippers are cutting tools used to trim and shape fingernails and toenails. They are typically made of stainless steel and have two blades that are designed to cut through thick nails with precision. The blades are shaped like a half-moon and are usually around 1-2 inches in length. The handles of nail nippers can be straight or curved, with some models having a spring-loaded mechanism to make cutting easier. Nail nippers are commonly used in manicure and pedicure procedures, and they are also useful for people with thicker nails due to medical conditions or age-related changes.