After many years I had problems with dry skin and deep, painful cracks in the heel area. I came across this Callus. A rough and a fine side really contribute to smooth feet with regular use. The cornea is gently removed in large quantities. The rasp can be used only for dry feet - that is, before the foot bath. In conjunction with a good foot cream (10% Urea-share) my tears are now completely disappeared. I use the product now since about 8 weeks, and I need it now only 2 times a week. The Callus fits comfortably in your hand and is easy to clean. Due to the long handle it is also beneficial for back problems. I would recommend this product only.