Chrome Copper Pop Up Sink Drain with Universal Automatic Overflow Large Drainage Gymnastics penetrating deep into brush gaps penetrating deep into brush gaps to remove residues it effectively prevents the liner from bursting and coming into contact with the heating element Product Type Pop up sink drain (with overflow) Material Full copper (lead free) Finish Chrome Operation Manual pop up (press to open close) Installation Type Recessed Drain Thread G11 4 Sink Hole Diameter 44–46 mm Under Counter Thickness 26–45 mm Max Basin Thickness 38 mm Package Contents 1 x Pop up sink drain measure your sink hole (44–46 mm) before ordering and use the included washers for a secure