Composite Quartz Stone Kitchen Sink. This Sink offers Feature like Easy to clean, Ever Lasting, hygienic, Certified Quality, High Durability, Reversible, Shine Lock Technology Quartz, the hardest constituent of stone around 80% of the raw material used in these premium sinks. in these process Quartz is molded with High Grade Acrylic Resin using a special computer controlled Polymerization Casting Process in Special High Grade Nickel Molds, to produce hardened composite material which is resistant to scratch, heat, stain, and scratches. And by this all process you receive a stylish & modern look kitchen sink.