Quantity one piece Material This faucet adapter is made of brass, which is wear-resistant, rust-resistant and has a longer service life than plastic materials. 3 in 1 design each adapter can be divided into 3 parts, with a long thread and a rubber ring, suitable for connecting taps with an outer diameter of 1/2' to 3/4'.Adjustable clamping ring our round faucet fittings are designed with an adjustable stainless steel clamp ring that can be adjusted by the handle, saving time and effort. Easy installation line up the adapter with the faucet, then tighten the circlip with the handle to fix it. No tools are required and the nozzle can be attached directly to the water pipe. If the faucet is too large, the inner rubber ring can be removed. Application The adapter with rubber ring can effectively prevent water leakage, suitable for most faucets with round or oval outlet, garden hoses, car wash accessories, washing machines, etc.