For pool without overflow; Easy to install, with a standard installation dimension of 1 , this drain plug is suitable for all commercial sinks Automatic waste plug operated with a simple push of the finger, the sink stopper cover comes off by hand in just seconds unscrew, clean, screw on and done Brass construction which is then chrome plated, anti-erosion , anti-abrasion Sealing ring: very high density and continuous Universal drain, bathtub drain without overflow, suitable for bathroom sink drains, easy to install and use. Wide range of applications: it is also very suitable for home use to make your life happier. Attention: The sink hole should be regular round, the edge should be smooth and flat. If the sink hole is crooked and frosted, it will leak after you install this drain Quantity shipped: 1 piece ladaceae