The PMD Mixed Blue Replacement Discs - 6 Pack contains a selection of large and small discs which will provide gentle exfoliation when attached to your PMD Personal Microderm - International. - L.M. Directions for Use: Securely place on PMD device Use on your face, elbows, hands, feet, or wherever you have uneven skin tone/texture Works well on surface scars Contains: 2 x large body discs 4 x small facial discs 1 x black replacement filter Aluminium oxide crystal tip