I have been dealing with progressively worse cracked heals in my forties. It got to the point earlier this year where I had basically resigned my efforts at presentable heels, shopping only for sandals that covered the heal with a stylish zipper back (luckily in style these days). Yes I had tried all of the daily habits of pumicing and creaming my heals before and bed and again every morning. Yes I had found a somewhat effective result from daily scrubs in the shower using a metal heel file… but still the cracks would be there in the weekend sunlight whilst I relaxed on the lounge chair… and then one day this add came across my FB feed, showing the heal a heel set of the silicone heal cup and Nano glass foot file. I pretty much dismissed the foot file entirely, assuming it was just a handy little stone shaped version of my current metal file. But when the set arrived and I tried the foot file for the first time in the shower, I was entirely amazed by its efficacy. Never before with any other device have I ever seen the dead skin roll away so easily and effectively. I swear to God in three days of using that little nano file thing my heel cracks were 100% demolished, with soft baby skin appearing for the first time in a decade. This is one of those things (very few) in life you come across that really have an impact. I’ll be honest, I didn’t love the heel cups because I felt oddly claustrophobic in them, and they made my feet sweat a bit. But the purchase was soooooooo worth discovering the nanoglass file, as the heel cups were actually the only thing I thought would work. I cannot more highly recommend anything more than this file for deep cracked heels. Use this in the shower every other day for a few days, being careful not to over file your skin down to the raw bits, and then apply cream to the area. I don’t know why or how this foot file works a million times better than any other similar device, but I do know that you will absolutely witness a miracle. :)