Package List: 1 Main Machine 5 0.3ml Ampoule Head 5 0.5ml Ampoule Head 1 0.3 conversion head 1 0.5 conversion head 1 Manual Specification: Condition: 100% new Element type: Hyaluronic injection pen Color: black + gold Configuration: hyaluronic injection pen, convertible 0.3/0.5 ml Injection depth: 6-8 mm Resolution: 0.01 ml (1lU) Single injection dose: 0.01-0.08 ML (1-8lU) Duration: 7000 times Application: men, women, old and young Efficacy: remove wrinkles, remove eye bags, crow's feet removal and hyaluronic acid injection. NOTE: Hyaluron Pen Kit does not contain hyaluronic acid, you need to purchase hyaluronic acid. To avoid wasting expensive hyaluronic acid, it is recommended that you get plenty of practice before using it. See our manual or search Youtube for how to use hyaluronic acid pen.