1 Set of Aquaterior Round Bathroom Sinks includes 2 sinks and 2 drains Made of ceramics which is molded under high temperature, with glazed surface for durability Chrome plated brass drain ensures longtime use and with a strainer for collecting debris and hair Compatible with American Standard Drainage Hole, just drill a suitable hole on counter for draining We provide 5-year warranty & on-line customer service for quality assurance