Aquaterior Round Bathroom Countertop Sink with circular design and sleek curves adds simple appeal Made of ceramics that molded under high temperature and the surface is glazed for durability Durable brass drain features chrome plating and comes with a strainer for preventing sewer clogging Adaptive to American Standard Drainage Hole, just drill a suitable hole on counter for draining With 5-year warranty & on-line customer service via email & phone, the product quality is guaranteed