Special highlight: • Stimulate the collagen production. • Improve elasticity of skin. • Smoothen acne scars. • Promote skin rejuvenation and improve alopecia. • Mildly roll 10 times vertically and horizontally. • Can be used on all areas of the face, neck and body and scalp. • Can be used by yourself anytime at your personal convenience. Function: • To rejuvenate skin via mechanically stimulation.