Swanstone QZ02522SB.170-4 4-Hole Granite Kitchen Sink, 22" x 25", Espresso Made with 80% actual quartz stone; only a diamond is harder Pre-drilled with 4 faucet holes Offers design flexibility, installs as a drop-in or undermount Virtually indestructible, will not damage from kitchen use Ideal for remodeling or new construction