1 Attachment head and 20 pads (1.57 in) dia. Salicylic acid acne medication. Instantly see fewer blackheads. Helps prevent new blackheads from forming. Foaming medicated pads, containing our exclusive blackhead dissolving serum, penetrate your pores to reduce the number of blackheads. Pads attach to the Blackhead Eraser (Blackhead Eraser sold separately) and use a gentle vibrating motion to exfoliate dead surface skin to remove dirt and oil more effectively. After cleansing, you'll be left with cleaner, smoother and visibly healthier skin.