Parameters: -needles: 540 needles  -Roller color : red/green/blue/golden/yellow/purple/black -Handle color : goden/silver/black /white/ transparant  -Needle material : titanium needle/silver medical stainless steel -Handle/Roller Material : PC -size: 0.2MM 0.25MM 0.3MM 0.5MM 0.75MM 1.0MM 1.5MM 2.0MM 2.5MM 3.0MM -High sealing sterilization packaging -package: carton box -package size for 100pcs: 50x35x25cm -weight:10KG -we support OEM service Theory: The micro needle therapy to stimulate skin with minimally invasive, using the micro needle to create a large number of micro-channels in short period of time, and form a high-quality delivery system among the epidermis, dermis and subcutaneous tissue, so that the active ingredient, nutrition products and ingredients quickly absorbed by the skin, which greatly enhance the efficacy of the product. Used by: 0.20mm--Home Use 1.00mm--Medical Use 0.25mm--Home Use 1.50mm--Physician Use 0.30mm--Home Use 2.00mm--Physician Use 0.50mm--Clinical Use 2.50mm--Physician Use 0.75mm--Clinical Use 3.00mm--Physician Use What is the applications of the dermaroller? 1. Scar removal including acne scar removal or treatment. 2. Stretch mark removal 3. Anti aging. 4. Anti wrinkle 5. Cellulite treatment/ cellulite reduction or removal. 6. Hair loss treatment/ hair restoration 7. Hyper pigmentation treatment. What is the treatment time of the dermaroller? 6-8 sessions recommended, with 4-6 weeks intervals. What is the advantages of the dermaroller? -Visual and noticeable improvement in a few days from the first treatment -Cost effective - there's no investment needed unlike equipments such as laser. -Short healing time -No permanent damage or injury -No bruising, infection, discoloration or other complications -Extremely high absorption of any active ingredients -Almost all skin types can be treated -Thickens the dermis without damaging or removing epidermis HOW DO I USE THIS PROPERLY? 1. Sterilize roller in alcohol solution before and after each use. 2. Wash and pat skin dry. 3. Do not puncture skin but apply pressure. Roll back and forth in desired area for 4 - 5 times. Switch direction. 4. Apply moisturizer or repairing serum after use. 5. Use once a week for optimal results. 6. Replace roller once every 1 - 2 months if using frequently and store in plastic case. WHAT IS THE MOST EFFECTIVE WAY? We strongly recommend applying your favourite serum right after rolling! This way your serum can really seep into your skin for maximum effect! HOW MANY TIMES A WEEK SHOULD I USE IT? It really depends on the individual and how sensitive your skin is but normally once or twice a week should be a good starting point!