Filing with glass is all about precision and care—think smooth edges, never rough or ragged.

Shape: Use short, fluid strokes to create your desired shape. The etched glass surface does the work for you, so there’s no need to scrub too hard.

Seal: Always finish your filing from the corner toward the center in one direction. This helps seal the nail edge and protect it from splitting.

Refine: Run your fingers along the edge—it should feel completely smooth, with no snags.

Care for Your File: Rinse with warm water and a bit of soap after use to keep the surface clean and effective.