4 half circle containers in Black (Gosport PO12)

25 cm diameter by 12 cm at widest, by 3 cm tall They are black rigid material not sure what it is as they are from Emirates Airline who are big on sustainability in the products they use. may be recycled plastic. They are all from the first class cabin and came originally with toiletries for the flight inside. if 2 are put together with the long side they make a circle with separate lids are easy to remove and they will also stack if needed. There is an emirates Logo on the top of each lid. Can anyone use them before I send them to recycling? if so please let me know, they are collection only from Gosport PO12. No timewasters please.