Set of 4 x SUPER Coarse Micro Mineral Rollers to fit the Emjoi Micro-Pedi Safely and Effectively Removes Rough, Hard, Dry, Cracked and Callused Skin from the Soles of your Feet Suitable for Both Men and Women, and Soft, Hard, Dry and Sensitive Feet Suitable for all models (except Micro Pedi Mini)