Karat Half Slab Black PP Rib Containers are made from high-quality PP material with a temperature tolerance of -4~248° F (-20~120° C). These containers have a matching OPS lid and can tolerate a temperature of 32~194°F (O~90° C) but is not microwaveable. These rib containers are perfect for showing off ribs, and other entrées and will securely take your food from your business to your customers! (Also Available in size full.)