How does a glass nail file differ from an emery board?

Glass has a fine, etched surface that seals and smooths the nail edge rather than sawing it. Emery boards are abrasive paper on a backing and wear out faster. Glass files rinse clean and keep their grit much longer.

Does it work on gel or acrylic nails?

Glass files are generally used on natural nails and are fine for shaping the free edge of gel or acrylic. For heavy reduction of product, a coarser file is faster. Use light strokes to avoid peeling the product at the edge.

Rinse under warm water and scrub the surface with a soft brush or nail brush, then dry it. Avoid dishwashers and harsh chemicals. Clean it after each use to keep the grit clear.

Will the file break if I drop it?

Tempered glass is more durable than plain glass, but a drop onto tile or concrete can chip or snap it. Store it in the sleeve between uses and keep it away from hard floors.

Is it good for promotional giveaways?

It is a practical, unisex item that people keep and use, and the sleeve makes it presentable. It suits bulk orders and event handouts better than a one-off retail purchase.