The eye make-up contained within the kohl pot was ritually applied according to its protective devices and deities. Ancient Egyptian magico-medical prescriptions caution one against the possibility of evil entering the body through the five orifices of the head, of which the two eyes were the most common conduits. The application of kohl to the eyes block that entry and protect the made-up individual from those dangers.
For other similar openwork kohl pots on stands see nos. 267-268 in Brovarski, Egypt's Golden Age.