MBI Double-Sided Stainless Steel File — Coarse/MediumA professional dual-grit nail file precision crafted from surgical-grade stainless steel. The MBI Double-Sided File features a coarse side for shaping and reduction, and a medium side for refining and finishing — two essential filing stages in one durable, sterilizable tool. Double-sided design — coarse grit for shaping, medium grit for finishing Surgical-grade stainless steel — built for lasting performance in professional environments Autoclave-safe — chemical sterilization and autoclave compatible Ergonomic finger-dip grip — comfortable hold for precise, controlled filing Lifetime warranty — MBI stands behind every instrument against manufacturer defects A reliable everyday file for professional nail technicians — built to outlast disposables and perform session after session.