Karat round and rectangular black, PP injection molded containers, and lids are great for takeout and leftovers. These containers are available in multiple sizes and with multiple compartments. These sturdy containers are microwavable and are suitable for hot or cold food items. Karat Injection Molded Deli Containers and Lids withstand much higher heat levels and retain their shape better than regular deli containers. Containers are microwavable and dishwasher safe. The Karat IM-FC4024B food container has a 24 oz capacity and is made of black plastic. This plastic is much more durable than most and is microwave and dishwasher safe.