4 x cupcake boxes divider trays. Cupcake containers have food-grade PET plastic windows, which can both keep your baked goods fresh and showcase your exquisite cupcakes or other desserts. These white cupcake holders are very practical, not only for storing 12 standard cupcakes, but also for transporting snacks and pastries such as muffins, cookies, desserts, donuts, macarons.