This is a salon-exclusive device. I purchased it 1 year and 4 months ago. It still works without any problems. I didn't use it very often, so it's in good condition, although it might be hard to tell from the photos. Please refer to the official website for product details. ＜Set Contents＞ ・Aurajet ・Carbon dioxide regulator (attaches to the CO2 cylinder) ・Purebble (shower head) 　＊Purebble Petit 　＊Includes a hand-held stopper. ・Connection parts 　＊The black tube connecting the gas cylinder and the Aurajet is 2m20cm long. This is a used item, so please make your purchase based on the images, understanding, and acceptance of its condition.