●Product material--made of brass for durability, withstands rust and scratch. Good material is the basic configuration of good products. ●Easy installation--the drain can be installed in a few steps completely without using any commercial sink instructions due to simple and practical structure. ●Reliable design--based on simple pop up switch design function, the drain can closes or opens in an instant. No more hassle with clamped sink plugs! ●Overflow hole design--the item can prevent water from overflowing out of the basin to cause some accidents. Suitable for all commercially-available washbasins and bidets. ●Sealing washers--high-quality silicone material, soft and extended aging, anti-dry crack and stronger sealing performance, to avoid annoying leaking water.