Large size-4.25 Inch Our shower head has a 108mm, 4.25 Inch diameter panel, which is even and wide enough to cover your whole body. The retro telephone style give the shower head a unique look, classic and luxurious. Standard Size-0.5inch BSPUK standard 1/2" connection - suitable for use with all our shower sets and wall brackets. A simple screw on showerhead - no need for tools. High Quality Materials - Durable The surface of the hand shower head is treated with 10 layers plating technology, which is more durable and does not lose its colour; shower head is made of high grade solid brass, which is much better than other cheap metal shower head or plastic shower head. Silicone Spout - Anti-clogging The shower head spout is further upgraded with highly flexible liquid silicone, which is more flexible and less prone to clogging than other universal shower head for a longer life. You only need to lightly press the water outlet to ve the limescale, effectively preventing the universal shower head from clogging and easy to clean. High Pressure Shower Head Air enters the shower head from the panel outlet hole and mixes with the water, then squeezes the air inside the showerhead to form a mixture of water kinetic energy, thus achieving the effect of boosting pressure, high pressure shower head will bring you a smooth showering experience.