1、The needle length can be adjusted from 80-300 micron, meeting different demands. 2、Stable and inflexible needles, there is no pain and no hurting your skin. 3、Promotes skin nutrition absorption of different skin care product, achieve the effects of whitening skin, acne removal, freckle fading, wrinkle elimination. 4、Effective device for anti-aging & skin regeneration, skin tighten and collag 5、When the chip gently touch the skin, they form up to thousands Nano channels, they deliver the skin care product safely and effectively.Features: When the chip gently touch the skin, they form up to thousands Nano channels, they deliver the skin care product safely and effectively. Effective device for anti-aging & skin regeneration, skin tighten and collagen stimulation therapy. Promotes skin nutrition absorption of different skin care product, achieve the effects of whitening skin, acne removal, freckle fading, wrinkle elimination. Stable and inflexible needles, there is no pain and no hurting your skin. The needle length can be adjusted from 80-300 micron, meeting different demands. It raises the absorption of skin care product 10~20 times more, providing better skin care experience. Specification: Item Type: Nano Chip Derma Pen Color: As Pictures Show Battery Type: 1 * AAA Battery(Not Included) Output Voltage: 1.5v Needle Length is 80-300 microns Needle Applicable: 1.5, 2.0, 2.5 Package List: 1 * Main Machine 1 * Micro Needle 1 * Manual