Great little gadget to keep your feet smooth
I love the Emjoi pedi foot buffer.  It works well if you use it every few days. If the rollers look worn out after a use or two, they aren't - just rinse them off and the color is back.  What you were seeing was dead skin.  I highly recommend this product; a good deal for the price.  I use it every other day and my feet are always smooth.
Rating: 5 stars