ALFI Brand 20-in Drop-In Round Granite Composite Kitchen Prep Sink Granite Composite sinks are well-regarded in industry circles for their extremely strong resistance to heat, scratches, dents, chips and being entirely nonporous! As a bonus, they do not need to be sealed or resealed and come at a fraction of the cost compared to other high-end sinks of this nature. This drop-in kitchen prep sink uniquely combines a very high-end look and long-term durability with low maintenance at an incredible value Designed in Italy, Made in Italy Includes drop-in installation hardware Comes with one pre-drilled facuet hole in center with option for plumber to punch out extra two holes as seen in dimension diagram Withstands severe thermal shocks and very high temperatures without being damaged