Features of Basin drain set Click-clac fitting 5/4", with overflow + trap, White (AlcaSetWhite) : Alca Basin drain clic-clac 5/4 " With overflow (A392B) Alca Universal design washbasin trap 100% metal white (A400B) . Alca Basin drain clic-clac 5/4 " With overflow (A392B) : Thread for connection to washbasin trap 5/4 Surface is resistant to mechanical damage Long-lasting CLICK / CLAC mechanism Material: chrome-plated brass White stopper With overflow . Alca Universal washbasin trap design 100% metal white (A400B) : Connection to drain pipe Ø32 mm Highly scratch-resistant Material: brass with white glossy finish Metal escutcheon Nut for connecting the 5/4" washbasin drain 100% European manufacture Distance to wall: 320mm maximum Diameter: 32mm