PMD Personal Microderm replicates the treatment given by professionals by using the same Aluminum Oxide crystals on the patented spinning discs. The hand-held tool uses vacuum action to gently pull skin towards the disc for optimum exfoliation. Once it removes the dead skin cells and reveals a clear, healthy complexion, your skin is able to absorb products much more effectively. The system includes several levels of exfoliating discs for a custom and controlled intensity.This set includes: PMD Personal Mircoderm Pro D230 Electrical Power Cord Body Cap Facial Cap 2 Blue Discs 2 Green Discs 2 Red Discs White Training Disc Reusable Filter