A black stainless steel double bowl kitchen sink is typically made of stainless steel that has been coated or treated to achieve a black finish. Stainless steel is a popular material for kitchen sinks due to its durability, resistance to corrosion and stains, and ease of cleaning. The black finish applied to stainless steel sinks is often achieved through a process like sical vapor deposition (PVD) or a special coating that bonds with the stainless steel surface. This results in a sleek and modern appearance that can add a touch of sostication to your kitchen. It's worth noting that while black stainless steel sinks are durable and resistant to many common kitchen hazards, they may still show scratches or water spots more prominently than lighter finishes. However, regular cleaning and maintenance can help keep your sink looking its best for years to come.