Special Smooth filing surface, that is strong enough to shorten and fine enough to gently file natural fingernails, without ripping or tearing, to help eliminate cracking, breaking, peeling and splitting; thus promoting healthy fingernail growth. Smooth filing surface Strong enough to shorten natural fingernails Fine enough to gently file natural fingernails No ripping or tearing Helps eliminate cracking, breaking, peeling and splitting promotes healthy natural fingernail growth