This is a ThreeCOINS nano-bubble shower head. Brand new, unused, and unopened. Please note that we cannot be responsible for initial defects. We will discount the shipping cost for bulk purchases. Please feel free to ask! The following is a product description: ● Cleanses deep into pores with "nano-bubbles" (※1) smaller than pores. ● Offers full-body care with 5 shower modes, including soft mist, straight, and jet scalp. ● The gentle soft mist is perfect for facial cleansing. ● Jet scalp is ideal for scalp care. Experience a refreshing sensation like a head spa with high water pressure. ● Saves approximately 56% of water usage (※2), making it economical. ● Convenient with a hand-held stop and water volume adjustment dial. ● Easy to install, no tools required. (※1: Nano-bubbles are much smaller than pores and hair and are invisible. They have almost no buoyancy and remain suspended in the water.) (※2: Compared the water flow of the "straight mode" when using this product after adjusting the water pressure to approximately 10L of water per minute from the shower hose / Third-party research) ■Specifications■ Maximum temperature: 60℃ Operating water pressure: 0.1MPa (dynamic pressure) - 0.5MPa (static pressure)