The KOHLER® Billings 17-1/2" undermount bar sink raises the bar on functionality and professional styling. The Billings sink is made of KOHLER® Neoroc, a matte-finish composite material designed for extreme durability and unmatched beauty. Richly colored to complement any countertop, Neoroc resists scratches, stains, and fading and is highly heat- and impact-resistant. The sink's deep bowl has easy-to-clean rounded corners and includes a sink rack to protect the surface.