Features: Made of quality material, no stuck needles and no jitters. Micro pain, easy to operate, just need to press the button to collect blood. Depth adjustment, you can choose according to the skin needs. Suitable for different occasions use, such as cupping drain blood, acupuncture, massage, etc. Rebound design, reduce pain, less wound, safe to use. Specification: Condition: 100% Brand New Item Type: Blood Lancet Pen Color: As Pictures Show Material: Pure Copper Size: Approx.12.8 * 1cm / 5.0 * 0.4in Service Life: 5 years Package List: 1 * Blood Lancet Pen 1 * Manual . Note: 1.The product does not include a lancet and needs to be purchased separately. 2. Storage method: This product should be stored in a cool, dry, well-ventilated place, and should be able to avoid direct sunlight and away from corrosive gases. 3. One per person: The blood collection pen is for personal use, not shared by multiple people. 4. Timely disinfection: Use a cotton swab with 75% ethanol to thoroughly wipe the inside of the blood collection pen and the cap. 5. One-time blood collection: In order to avoid infection, each needle instrument is used once, and it is discarded when it is used up. 6. Properly dispose of discarded needles. Dispose of used lancets carefully.