Opened once for inspection (unused) [Amazing 90% Water Saving & Powerful Pressure Increase, Worry-Free About Water Shortages and Water Bills] This revolutionary product overturns the conventional concept of water-saving showerheads. It achieves an astonishing 90% water saving while maintaining, and even enhancing, the water pressure! The powerful water flow quickly washes away the foam clinging to your scalp and body, making for a comfortable and time-saving shower. You'll have peace of mind knowing you can use plenty of hot water without guilt, even during seasons when water shortages are a concern. With the added bonus of contributing to environmental protection, you'll feel like you made the right choice every time you use it – a smart and eco-friendly selection. [Incredibly Easy Maintenance, 3-Second Detachment Without Screws! Showerhead Becomes a High-Pressure Washer!] Clogging and performance degradation due to water scale are a thing of the past. This showerhead's innovative design requires no tools, fundamentally changing the image of tedious cleaning. It can be easily detached in just a few seconds, making even the most lazy person want to clean it quickly. Simply twist the body to easily remove it, and the showerhead itself transforms into a "high-pressure cleaning nozzle." With this function, you can use the shower hose directly after showering to complete the rinsing of the entire bathroom with a powerful straight stream of water. [Direct Connection to Almost All Japanese Faucets / No Troublesome Conversion Fittings Required] Directly connectable to almost all domestic faucets (with 4 types of adapters: M/K/G/T)! The day it arrives is the beginning of a comfortable shower life. No complicated tools or knowledge are required, and anyone can easily install it in a matter of seconds. You no longer need to spend time searching for adapters; experience this amazing performance now.