A square 18" RENIST Quartz Sink is ideal for bars or prep areas. Featuring a beautiful black finish that resists heat, stains, and scratches, this product is meant to last. It can be installed as either a drop-in or undermount sink with self-rimming.•Impact, heat, and scratch resistant: molded from fine quartz sand to resist impact damage, chipping, and scratches.•Requires a minimum 21 in wide sink base cabinet•Includes a chrome basket strainer•Can be installed as a Drop-In or Undermount•Easy to clean, antibacterial, and stain resistant, washes clean with soapy water•The sink can accommodate garbage disposal - Flange extension is not needed•We do not recommend cutting the countertop until you receive the sink - sizes may vary slightly and the sink itself should be used as a guide for cutting