Jazz Series with Drainer Quartz Kitchen Sink 40" × 20" x 9" ( 1000 x 500 x 225mm) | Concrete Finish | Top Mount, Under Mount & Flush Mount Installation | Included Accessories: Plumbing Kit | Slab Cutting Size: 480 x 430mm

They're moulded from roughly 80% natural quartz and 20% acrylic resin under high pressure, creating a dense, non-porous surface that resists scratches, dents and stains far better than pressed steel or ordinary composite sinks.