This Review Title is Muscles needed to use this item. and the content is: This item definitely does the job, but is much larger and heavier than expected.  I would only use this on my toenails.  It came from an Asian country and I didn't realize it.  I wish I knew what kind of metal it is made of..There are other information for this review, one is This reviewer did purchase it and the other is 0 people think this review is helpful.