【Size】This replacement shower head uses an external connection with an outer diameter of 0.8 inches (20.36 mm), not 1/2 inch, and an inner diameter of 0.55 inches (14.15 mm). Please note that it is only compatible with standard telescopic hoses. Please confirm the size and thread type before ordering. 【Material】Made of high-quality black-coated ABS plastic, durable and resistant to rust or fading during daily use. 【2 Modes】One-button switch between bubble spray and shower spray for convenient daily rinsing/water filling. 【Easy Installation】No tools required; installing this pull-out faucet is very simple; simply unscrew the original faucet and screw this one on. 【Water Saving】Built-in high-quality aerator saves up to 30% water. The aerator is not removable. For routine maintenance, simply wipe away limescale with your fingers or remove the aerator to rinse the shower head.