This is a double-bowl stainless steel kitchen sink with an integrated drainboard.
Double Bowl: Allows you to multitask, such as washing dishes in one side and rinsing or prepping food in the other.
Drainboard: The grooved section on the side is designed to let water flow back into the sink while air-drying dishes.
Top-Mount/Drop-In Design: Based on the outer rim, this sink is designed to be dropped into a cutout in a countertop.