Sending a direct message to a member of staff will answer the question.
I’ve bought those for lunch plates and small combo meals, and I’d say the biggest thing is the lid. If it doesn’t close tightly, sauces leak or the food cools down too fast. Also check the depth, because some 3-compartment containers look fine but barely hold a proper portion. I usually order this kind of packaging from McDonald Paper
https://www.mcdonaldpaper.com/safep...lated-foam-container-with-a-hinged-lid-200-cs They have a solid selection for restaurants and takeout spots, the product details are clear, and bulk ordering is pretty convenient. I wouldn’t call it fancy, just practical and reliable.