General description This automatic pop-up drain is designed for washbasins without overflow, featuring a push-open mechanism for easy operation. Constructed from chrome-plated copper, it ensures durability and resistance to corrosion and abrasion. Technical specifications Standard installation dimension: G1 1/4 inches Material: Brass with chrome plating Installation Easy to install with a straightforward process: unscrew, clean, screw, and you're done. Ensure the drain hole is regularly round with a smooth and flat edge to prevent leaks. Usage Operated by finger-press, allowing for quick removal of the sink drain plug cover in seconds.