The Activeshop Ocho Nails Nail File in a straight shape is ideal for spreading and restoring the natural shape of the nails. With a hardness of 100/180, it provides the right surfaces for shaping nails, whether they are natural nails or nails that have been treated with acrylic or gel. This particular file is excellent for preparation before the application of acrylics or gels and offers a professional feel in cleaning and caring for the nails. It comes in a pack of 10 pieces, making it easy to use and store.