Variable Speed Electric Foot File - AMAZING!

I have awful cracked dry heels and always looking for the next best thing. Most of the foot files on the market do not work for my feet, the cracks are too deep. I found this 'Variable Speed Electric Foot File' on Wish.com
It was $22, comes with sticky back sanding disks that are an aggressive 60 or 80 grit. Finally!! Something that takes the cracks down to baby smooth!! I'm SO thrilled! A replacement pack of disks is around $10 each (60 disks). I've had mine now for over a year, and use it weekly. No problems yet.