Brass & ABS materials+ Plating: faucet extender make from metal connectors and arm, ABS aerator body, multi-layer plating surfaces for long service life, high stability, anti-rust, not easy to dirty, beautiful and so on 4 Water Outlet Modes: rotates rubber rings on aerator to switches bubble outlet to bubble stream or powerful rinse sprays Rubber rings designs order to anti-slip designs makes operations easier, even with bubble on your hands, allows you to change directions quickly 1080° Freely Rotating Faucet Extender has 3 joints that each joint can be rotated 360 degrees, 360degrees+360degrees+360degrees=1080°, allows for omnidirectional 360-degree rotation, bending, and folding Excellent designs Triple splash filter inside the aerator removes impurities, such as sand sediment and rust for a more comfortable Easy Installation suitable for most bathroom / kitchen / laundry sink faucets With 3 Thread Size and Tools, 55 / 64 " 27T ( 22mm) female thread, G1 / 2 ( 20mm) female thread, 15 / 16 " ( 24mm) male thread Place the corresponding silicone rings in the thread port of the faucet extension, you put it in the wrong way, it may cause water leakage