Thank you for viewing. This was used for clear aligner orthodontic treatment. It's an expansion-type acceleration device. I purchased it a year ago and used it for about six months. I bought it from my dentist for around 100,000 yen. Light therapy device, pbm HEALING brand, complete with accessories. Expansion type - Brand: pbm HEALING - Accessories: Charger, cable, case, infrared device Disinfected. Operation confirmed. After taking the photos, I will disinfect it again, and I will clean it once more before shipping. I do not smoke. I always cleaned it after each use. I am a woman in my 20s. Available for immediate purchase.