Using your CARYSIL black granite kitchen sink is a breeze. Just place your dishes, utensils, or whatever you need to wash right in the sink and turn on the water. The round corners make it easy to clean out any dirt or debris. When it comes to installation, you can choose top, flush, or under - mount installation according to your kitchen's design. There's a 90mm strainer waste included to prevent clogs. For maintenance, avoid using abrasive cleaners as they may scratch the sink's surface. Since it's resistant to high temperatures, you can put hot pots and pans in it, but it's still a good idea to let them cool down a bit first. Thanks to its anti - bacterial technology, it stays hygienic. And with its corrosion - resistant and wear - resisting properties, it'll serve you well for a long time under normal use. Remember, you have a lifetime warranty, so if there are any issues, you're covered.