2.5mm/3.0mm: remove wrinkles, body extension scars and burning scars
2.0mm: remove small injury scars, wrinkles around the eyes and acne scars
1.00mm/1.5mm: remove wrinkles and pigmentations on the skin
0.5mm/0.75mm: help build beautiful & healthy skin, and prevent hair loss
0.2mm/0.25mm/0.3mm: perfect for cosmetics application