Teka Be Linea RS15 50.40 Undermount Stainless Steel Sink is a type of kitchen sink that is installed beneath the countertop rather than being placed on top of it. This creates a seamless and clean look in the kitchen, as the edges of the sink are hidden beneath the countertop, giving a sleek and modern appearance.

Undermount sinks provide a streamlined appearance, as they eliminate the visible rim that's typically present with top-mounted sinks. This enhances the overall aesthetics of the kitchen or bathroom. Stainless steel is a popular choice for undermount sinks due to its durability, resistance to stains, and corrosion resistance. It can withstand heat, and chemicals, and impact relatively well.