Porcelain under-mount sinks come in white, bisque and black. Some Rectangular while others are round.
Make sure to check out the “FAUCETS” —> “Bathroom Faucets” tab to pair your sink with the perfect faucet. Faucets that work best with porcelain under-mount sinks begin with the SKU letters “BF, BTF, or BFF”
Also, don’t forget to pick out a drain under “ACCESSORIES” —> “Drains”