💗 Double side design: Use the rougher side to scrub calluses and the smoother side to buff part, double-sided foot file to remove calluses and smooth feet, largest file surface for corn and callus removal, gives equally good results on both dry and wet foot surfaces , 💗Suitable size&hanging:The foot files for hard skin is approx. 23.5 x 5.9 cm/ 9.25 x 2.3 inch, the suitable size is easy to store and carry out,The handles have a hole for convenient hanging and drying after use