This composite material is 80% granite and features a stylish, metallic gray finish. Non-porous and easy-to-clean, this sink resists stains, scratching and chipping. It also boasts a heat tolerance of up to 280°C (536°F). There's one centre-back hole drilled for tap installation and four knock-out holes that can handle any accessories you find useful. All BLANCO sinks are supported by a Limited Lifetime Warranty.