free download PNG images :Nails

Nails are angular envelopes that cover the fingers and toes of most primates and some other mammals. Nails are similar to the claws of other animals. Nails and toenails are made of tough protective proteins called alpha keratin. The protein is also found in the hooves and horns of different animals.

The nail consists of a nail plate, a nail matrix, a nail bed under the nail plate and a groove around the nail plate.

In this page, you can download free pictures: nail pictures, Manicure