A cruet set consists of

A cruet set is a set of small containers that are used for holding condiments or sauces on a dining table. Typically, a cruet set consists of containers for salt, pepper, and mustard. The salt container usually has larger holes, while the pepper container has smaller holes. The mustard container is usually larger than the other two and has a lid that can be opened and closed. Some cruet sets may also include containers for vinegar or oil.