A gimmick product.
I did everything I was suppose to do but the pick seems more like a gimmick than something that actually helps with callus. Just felt like it was massaging my teeth and I didn’t want to be too aggressive with it because I didn’t want to destroy my tooth enamel or chip them. I don’t have a lot of callus at all but the two I do have didn’t budge.
Rating: 2 stars