LotFancy cupcake containers are made of food grade PET plastic, non-toxic, safe and durable. Intended for single-use, but can be washed and reused. The single tab lock in the front will firmly keep the container closed, but is easily opened. The back hinge is tough and won’t crack. The individual cupcake holders are stackable. Perfect for high volume display on a table or shelf and for transport. These clear cupcake containers are suitable for a variety of baked goods and treat. Cakes, cupcakes, sushi, biscuits, muffin, fruit and other foods. Great for weddings, baby showers, birthday parties, holiday celebrations, anniversaries and other parties.