I'm selling this showerhead because it wasn't a good fit for my family. I used it for about six months and then replaced it. It has been stored at home for about six months. The screw attachments are unused. I used the pressure regulator once, but the water pressure decreased, so I stopped using it. Please understand that this is a used item. Please refrain from purchasing if you are sensitive to imperfections. Features: Stop button & mist water flow with nano-bubble shower. Expected effects: Cleansing, moisturizing, and warming. GOOD DESIGN AWARD 2017 winner. ■ Micro-nano bubble generation (/cc) Shower water flow: 93 million or more Mist water flow: 96 million or more ■ Nano-bubble (0.001mm diameter) ratio Shower water flow: 96.12% Mist water flow: 94.14% Included: Shower head adapter set of 2 (for KVK and MYM) Screw thread diameter: G1/2 Usable temperature: Under 60 degrees Celsius Usable pressure: 0.1～0.3MPa Packaging size: 255 x 125 x 80 (mm) (box) Weight: 250g Materials: ABS resin, POM resin, PP resin, modified PPE, EPDM, SUS Notes: * If the water pressure is 0.3MPa or higher, use a pressure regulator (sold separately).