Undermount installation creates an easy-to-clean, seamless design Pre-installed sound dampening pads reduce noise generated in the sink X-patterned grooves quickly drain and prevent liquids from pooling in the sink basin Optional accessories include grid (item #233078), colander (item #224387), cutting board (item #231609/224390) and foldable drying mat (item #238483) Basket strainer and installation clips sold separately