This icon is a part of a collection of Paznokcie flat icons produced by Icons8. Icons follow the guidelines of iOS, Windows, and Android and are designed by a single designer, guaranteeing the consistent quality. Both PNG and vector are available.
It's the image of a long polished fingernail and the top part of a finger. The nail is shaped to make it more rectangular than would be natural. There is a line drawn on the fingernail to indicate shine, as if the nail were polished or painted.