Thank you for viewing. This is a nano-bubble shower head from 3COINS. I purchased it at the store and used it for a few days. The instruction manual has wrinkles. I disassembled it and removed the water, but some water inevitably remains inside the shower head because water has passed through it. The included accessories are: 3 spare white packing rings → 2. Everything else is included. This item is currently out of stock from the manufacturer. Product Name: Nano-bubble shower head Shower Modes: 5 shower modes Nano-bubble size: Less than 1μm Water flow adjustment function: Yes Brand Name: 3coins and us