Excellent Fit: Set of 4 x Super Coarse Micro Mineral Rollers to fit the Emjoi Micro Pedi.Effective Roller: Removes hard skin easily and quickly and leaves your feet feeling smooth.As Good as Original: Refill and Replace your Existing Worn Out Rollers which works as well as the original ones.Spare Rollers: Specially designed for the roughest and toughest calluses, Suitable for Both Men and Women.Note: NOT compatible with the MICRO Pedi MINI. Compatible with MICRO Pedi, MICRO Pedi MAN, MICRO Pedi NANO, MICRO Pedi Power, and MICRO Pedi Professional units.