The Cherubim have four wings and four heads. The four heads point out in the four cardinal directions. Cherubim is plural for the word Cherub, and derives from the Hebrew word Kerub meaning knowledge or one who intercedes. They are the next closest to God in Christian mythology and are also the bearers of His chariot whenever he decides to leave and roam about the universe. In the Book of Genesis it is the Cherubim who force Adam and Eve out of Eden and bar the gates and also keep watch over Eden until the Day of Judgement.
Thrones are the third most powerful angelic order within the hierarchy.
They are also known as the Ophanim or Galgallin . It is not known how many wings the Thrones have, if they have any at all, considering they are depicted as wheels. Their leader is said to be Raphael . These angels also go by Dominions , Lords , Kunatetes , or Hashmallim . The Dominations are said to regulate the duties of God, which I take to understand as looking over what He has created and making sure that the universe moves steadily along without any major hitches.