Ideal Design: A very smooth spring mechanism is incorporated inside the drain, ensuring a watertight seal without the need for a leaky push-pull lever. No Overflow: This drain has no "overflow" design and is suitable for use with standard sinks and vanities that do not have an overflow hole at the top of the sink. Robust and Stable: Brass construction and a lock nut ensure quality and durability, effectively resisting corrosion and rust. Surface Treatment: The antique brass finish creates a slightly retro golden appearance with a beautiful metallic texture. Easy Installation: Supplied with mounting hardware and concealed screws, installation is quick and easy, and this item fits most sinks.