Review (4/5): Effective tool to remove callus. But not durable. Remove one star.
Amended comment: Broke down in April 7, 2017. Works six months only... :-( Quite disappointed. Contacting the seller for warranty information.
Works like miracle. Addicted to use it everyday. Much much better than using those skin peeling foot mask. No complaints. Hope the tool will last longer than 3 years - warranted.