Composite Granite Kitchen Sink. Dual Mount installation (undermount or drop-in) 50/50 Double bowl, 9" sink depth. Heat resistant to 536 degrees. Colorfast throughout, scratch and chip resistant. One faucet hole pre-drilled, 3 additional spaces pre-scored for use with 2, 3 or 4 hold faucet installations. Paper cutout template and 38mm hole saw tool included for drilling out additional faucet holes.