Hose connection: Ø 25mm. Hose with a 25 mm internal diameter fits.
Outer diameter (bottom, the black part in the image): Ø 64mm
Outer diameter of the aluminium fitting that sits on top in the sink/basin: Ø 48mm
Fits mounting hole in sink/basin: Ø 35mm
Total length: 90mm
Total height: 40mm
Angled: 90°
Delivery contents: Drain fitting, gasket, screw & plug.