Made of qualitied plastic material, easy to install by yourself including the brass replacement fitting and screw Diameter is 35mm and 40mm, ceramic disc insert, for bath or basin taps If your tap is leaking or won't shut off, then you just need one of these Replacement Cartridges and instead of buying a new faucet Replacement cartridge for either kitchen, basin or bathroom single lever mixer taps Please check the technical drawing for dimensions and check whether will fit for you