Features: 1. More easy to operate at the small or curved areas. 2. Minimised epidermal damage. 3. Each derma roller has 1 tips,each tip has 12 needles. 4. Prevent cross infection, adopt with disposable needles 5. You can adjust the size of the needle. You can adjust the lenght of needle by turning clockwise or counter clockwise, Turning it clockwise,length of it will be longer, Turning it counter clockwise, length of it will be shorter. Specification: 1. Condition: 100% Brand New 2. Total needle number: 12 needles 3. Needle length: 0.25-2.0mm 4. Needle material: Titanium needle Function: 1. Anti-Puffiness 2. Scar removal including pimple scar removal or treatment. 3. Pimple Scar Removal,Pimple Scar Treatment 4. Pimple Wrinkle Treatment, Pimple Aging 5. Hair Loss Treatment or Hair Restoration 6. Surgical Scar Removal 7. Hyper pigmentation treatment. Advantages: 1. Visual and noticeable improvement in a few days from the first treatment 2. Short healing time 3. No permanent damage or injury 4. No bruising, infection, discoloration or other complications 5. Extremely high absorption of any active ingredients 6. Almost all skin types can be treated 7. Thickens the dermis without damaging or removing epidermis. 12 Needle Function: 1. Automatic high speed roll(max speed 4000~6000 turn per minute), producing 12 delivery channels. 2. Various micro-needle mode to stimulate skin: a. strengthen skin to absorb beauty production, the absorbency of skin can be up to above 40 times, and improve pimple scar more than 50%. b.the skin will be luster and elasticity, different from lottomr or chemical substances, it is non invasive, can improve skin and enhances absorption. 3. The micro-needle of depth can be adjusted(0.25mm-2.0mm), greatly improved the treatment Package Included: 1 x Needle Cartridge .