Reditainer, is known worldwide for delivering greats products at low affordable prices. Our soufflé cups are no different. The soufflé cups come with lids that firmly lock. The cups are made from a unique plastic called Polypropylene, this type of plastic is durable yet flexible and clear translucent color. They are perfect for: jello shots, condiment cups, sample cups, or anything you could use a soufflé cup for. Reditainer - Soufflé Cups are the perfect soufflé cup, give them a try today!.