Skin Doctors Power Abrasion Replacement Heads Powerbrasion Sponges - micro orbiting heads for Accelerator Unit in the Powerbrasion Home Micro-Dermabrasion System. Directions for use: Attach to the head of the hand-held Micro-dermabrasion Accelerator prior to use. Remove the sponge after treatment and rinse thoroughly. Store in a cool dry place until next use.