It's a mechanical pumice stone essentially
Sorry, no pictures of feet, just what I've found out.<br /><br />What I like: It's basically a handheld drum sander w/ coarse, medium and fine heads.  It's a push click square drive so I don't get the feeling it will strip out easily.  There's what I presume to be a voltage cutoff circuit that stops it when it's overloaded or drained.  That will stop the unit if pressed too hard, but will let you grind into good tender skin though so watch out.  The run light shows which speed it's on, full lit is high, half lit is low.  High gloss finish so it wipes off easy to dispose of the foot dust.<br /><br />Neutral thoughts:  It lists a 2000 ma battery and a 2 hour run time.  I haven't bothered running it via a wall monitor to verify but is likely close.  The 2 hour run time must be no load or very light duty.  I get about 30 minutes before it started stopping frequently.  Enough to get both feet but was close when tackling the first pass work boot buildup.<br /><br />Negative:  It only comes with the USB cable, no wall transformer.  I double checked when I wrote this and no mention either way.  I'd like to see that clarified that you have to provide that part.  While by no means a deal breaker it would be nice to have it known.  Seems like more and more it's just assumed you have one open and available.  No mention of battery chemistry and it's non-removable which may make it slightly harder to recycle.
Rating: 4 stars