Soft Skin file refill x 1 Soft/1 Medium. Its micro crystals of mineral gently and safely remove calluses without damaging the most delicate layers of skin. Replacement nail file remover x2 units, one soft and one medium hard. Removes hardened skin in minutes and very easily. Its micro mineral crystals gently and safely remove hard skin without damaging the most delicate layers of skin. Safe and portable, gently glides the file over rough, hardened skin. Two refills, one for soft and one for medium hardness.