I purchased this last year for 2.8 million yen. I have two of these, and this one has only been used once. It's practically new. I'm selling this one because I don't use it. Effects: This device uses ultra-fine needles to create tiny holes on the surface of the skin, enhancing the skin's natural healing ability and addressing concerns such as acne scars, craters, pores, and fine lines. Radiofrequency waves are emitted from the needle tips, providing simultaneous skin-beautifying and lifting effects. After the treatment, the included cold hammer is applied to calm the skin, resulting in minimal downtime, unlike traditional dermapens. This is a dermapen, but with almost no downtime, making it perfectly suitable for use in salons. The radiofrequency emitted from the needle tips provides excellent results. Please feel free to ask any questions in the comments.