●Use: the tap handle fits any single lever mixer with a cartridge diameter of 40 mm. The installation dimension of the cartridge shaft is 10 x 10 mm. ●Bright surface: the bathroom tap with a bright, mirror-like appearance, smooth tap lines and fully textured handles fits any modern bathroom decoration style. ●Easy to use: it comes with a red/blue marked button that allows you to distinguish the hot or cold water temperature. Exquisite workmanship, smooth and shiny appearance, suitable for bathroom and toilet. ●Easy installation: the ergonomically designed handle offers you a comfortable user experience. Easy to install and easy to replace, a direct replacement for the broken or damaged one. The classic design of this button handle is suitable for updating or replacing your hardware. ●Quality: the tap handle is made of zinc alloy and a galvanised surface for long durability, corrosion protection and high strength.