I have purchased THREE of these in hopes of finding one that’s not defective. Without fail, they crack in half upon the first use - I have no dropped any of these glass files, and I can’t imagine why they would be made so delicately as to break immediately.
Too expensive for the type of product. This product can be found for much cheaper. I bought it on sale but would not recommend buying this if at full price. It does do the job but it is not good for multiple uses.