Brand from South Korea: baren. Benefits:A two-sided nail file helps remove soft gel nails in a convenient way.The coarse side with 80 grit helps grate the middle part of the soft gel nails.The fine side with 100 grit enables better refinement for the side part of the gel nails.Made with high-quality stainless material for hygienic application.How to use:1. Use the coarse side to grate the middle part of the gel nails.2. Use the fine side to softly refine the side part of the nails.3. Wrap the tip of your finger with cotton pads soaked with remover.4. Gently remove the residue on your nails.