Based on a T-shirt made famous by mercenary Jayne Cobb in the sci-fi Western TV series Firefly, our ceramic bowl set is perfect for snacks, soup, cereal or whatever your troublemaking heart desires. Made of sturdy stoneware, each bowl has a removable silicone ring to protect surfaces and prevent sliding. Dishwasher, microwave and oven safe (up to 480 degrees F or 250 degrees C). You will dine like The Hero of Canton with these colorful ceramic bowls. Just remember, living legends need eggs!