Standard Tap Reviver Kit High quality brass quarter turn ceramic disc valves/cartridges, High quality Metal Handles/Heads Suit most taps/mixers with 1/2” tap valves/cartrdges such as basin taps, basin mixers,high neck kitchen sink taps,deck mounted kitchen sink mixers. Direcly replacements for existing faulty/leaking cartridges or broken tap handles/heads. Package comes with screws, hot and cold indicator. Notes: as with all chrome products, please just use a damp cloth and soapy water to clean this product. Never use abrasive cleaning products or chemicals on chrome.