THE BRUSH WITH GENTLE AND SOFT BRISTLES, COMFORTABLE HEALTHY AND NO HARM TO SKIN. IT CAN CLEANSE AND EXFOLIATE DEAD SKIN CELLS, FACIAL SKIN, SHRINK PORES THOROUGHLY, PREVENT BLACKHEADS GENERATING AND PREVENT SKIN AGING. THE SMALL SIZE IS CONVENIENT TO STORAGE WHEN GO ON A TRIP. COMPLIES WITH PROP 65. 3" L X 1" W X 1" H