Trim Easy Hold Rasp & Callus Remover

This is exactly what I was hoping. The description leaves out a lot of information. There's a cheese grater side, that's removable, you can clean it thoroughly, and on the other side is a black fine sandpaper-ish surface for a smooth finish. I use the black side on my cracked dry fingers too. I've been looking for a replacement at Walmart for over a year I am so thrilled to have found it online.