These nail files are fabulous.  The high quality glass nail files are made in the Czech republic.  Then, American glass artists fuse dichroic glass on to them to make them as beautiful as they are functional.  They never wear out.  (They can, however, break if dropped.)

They come in three sizes and 7 colors.  The fused glass design at the top is always different.  The small files are $15.00, mediums are $17.00, and large are $22.00.