Features of Basin drain set Click-clac fitting 5/4", for washbasin with overflow + Siphon, Matt black (AlcaSetBlack) : Alca Basin drain set Click-clac fitting 5/4", for washbasin with overflow, brass chrome-plated black matt (A392BLACK) Alca Washbasin trap black brass Matt (A400BLACK) . Alca Basin drain set Click-clac fitting 5/4" (A392BLACK) : Thread for connection to washbasin trap 5/4 Surface is resistant to mechanical damage Long-lasting CLICK / CLAC mechanism Material: Brass, matt black chrome-plated Black cover cap With overflow . Alca Siphon for washbasin black brass Matt (A400BLACK) : Drain connection: Ø32 mm Highly scratch-resistant Material: chrome-plated brass Colour: matt black