Sinks can be fitted in two ways, undermount or inset. An undermount sink sits underneath the worktop and the worktop is cut to match the exact shape of the sink, with a small 3mm overhang. Bowl and a half undermount sinks are very popular right now, taking up less space than two single bowls. The edges are polished to enhance the material further. This feature gives a stylish and elegant finish to the kitchen worktop.