Aquaterior glass sink & drain set includes glass above counter sink, pop up drain and mounting ring Strong tempered glass sink construction with smooth surface for durability and easy cleaning Brass drain body with polished chrome layers for long service life and anti-corrosion Drill a suitable hole on countertop and install the sink with mounting ring, install drain into sink and secure the installation 2 Rubber rings for touching the bottom of basin and the countertop to avoid water leakage