- Double-sided 100/180 grit file for shaping and refining: one coarse side (100 grit) quickly shortens and evens acrylic and thick nails, the finer side (180 grit) smooths edges and refines the final shape for a clean, professional finish. - Durable, warp-resistant construction: built to hold its shape through repeated use so you can file with confidence without worrying about deformation. - Washable and reusable: rinse with water, air dry, and store for the next use — economical and hygienic compared with single-use files. - Designed for both acrylic and natural nails: works well on acrylic extensions, gel overlays, and natural nails; also effective on toenails and rough, thick nails. - Compact, easy-to-handle size: ideal for precise filing along the nail edge and for shaping tips without over-filing the nail bed. - Consistent performance: coarse side removes bulk efficiently, fine side leaves a smooth, delicate edge ready for buffing or polish. - Suitable for multiple settings: professional nail salons, at-home manicures, and group DIY nail sessions with friends or family. - Practical use scenarios: - Salon shaping and shortening acrylic extensions before buffing and polishing - Home DIY manicure for shaping natural nails and refining edges - Pedicure use to smooth and reduce rough toenail edges - Thoughtful gift for nail art lovers: a practical, reusable tool ideal for girls or women who enjoy creating their own manicures and nail designs.