All coarse grinding heads - Vacuum is kind of cool!
With the electric foot file device I received six (6) small grinding heads, and two (2) large grinding heads. All of them are coarse-grit. There is a USB charging cord but no adapter. Attach either 3 small grinding disks  or one large (your preference), turn on the machine at one of the two (2) speed settings, and it does a fine job at smoothing down dry skin.<br /><br />The vacuum is kind of cool! There is a fan behind the grinding disk mechanism that is facing inwards, into the handheld device. It pulls air through and behind the grinding disks. The dead skin that it catches goes into a fine screen mesh cup with holes that are too small for skin to pass through. Empty the cup by removing the grinding head and a plastic grind head holder. It's easy to clean because the parts are water resistant.<br /><br />One star removed for there being only "coarse" grit grinders unlike the ad mentioned. All of mine are "coarse" grinders. However, the product works as advertised. Follow-up with something finer like a nail file or fine pumice stone (if needed afterwards). I only needed lotion afterwards.<br /><br />The ad says the following, but I can't see or feel a difference between any of them.<br />>  Three Different Replacement Roller Heads<br />> •  Fine roller head: Suitable for dead skin on hands and feet, or some delicate skin care.<br />> •  Regular roller head: Suitable for new calluses on feet and normal skin care.<br />> •  Coarse roller head: Suitable for stubborn thick calluses on feet, corn, and dead skin.
Rating: 4 stars