· Bilateral Nail File - One side of the glass nail buffer is used to shape the nails, and the other side is used to polish the surface of the nails. Polishing the nails according to the physical principle can effectively avoid the damage caused by the use of nail polish.· Healthy and high-quality material - The upgraded nail file is made of high-density nano-glass, which is not easy to break and is a harmless nail tool that can easily polish the nail surface. Zero irritating scratches, giving you a comfortable and gentle manicure experience.· Durable and Washable Nail File - Glass manicure tools are durable, rinse directly with running water after each use, and put them in the box after drying.· Multiple Uses - Nano glass nail polish is suitable for all types of nails, whether you have round nails or rough and thick nails, it can smooth the tips of the nails and polish the surface of the nails easily.· After-sales - If there is any quality problem with the nail buffer polisher, please contact us in time, we will unconditionally return it for you and refund it without causing any loss to you.