Standard 4.1cm Drain Opening: Fits 4.8cm to 4.8cm sink holes. MAX. Sink thickness: 5 cm. Ideal compatible any sink without an overflow. Material types: pop-up drain plug, drain flange, brass threaded pipe, stainless steel tailpiece. All metal construction compatible maximum durability. State-of-the-art corrosion and rust resistant finish. EASY TO USE: Spring-loaded push button requires no lift rod. Simply push the drain plug down to close and close, push again to open and drain the water. You can twist the top cap counterclockwise to unscrew and remove. Easy to Install, No Leaks: All gaskets, seals and brass mounting nuts are included. Please make sure the seals are in the correct position (please refer to product images or instructions) to avoid leaks. Measurements: Total length from top of pop-up cup to end of tailpiece: 21.5cm. Upper diameter: 6.6 cm. Tailpiece fitting diameter: 3.2 cm. Size Name:Big Popup Cap | Colour:Black Features: Cap Material: Brass. Tailpiece material: stainless steel. Finish: matte black. Overflow: no. Drain type: spring loaded. Total height (unfolded): 215 mm. Top diameter: 66 mm. Sink hole size required: 41-50mm. Maximum load: Sink thickness: 50 mm. Tailpiece Diameter: 32mm. Product weight: 303g. Contents: 1 Pop Up drain plug. becomeveryrich