Great bundle!
Works great when you're careful, it's very sharp and can be sharpened if need be. I wouldn't use an electric sharpener, though. It sort of sliced some pieces off thank goodness the flying pieces weren't an issue. It does come with extras and I got many uses from just1 the first time around. Super easy to use at home on yourself or others. Better than the average pumice. I use this along with an electric callus shaver and conjointly they work great.
Rating: 5 stars