His harness was studded with brilliant emeralds and other jewels and so, while he himself was not at all handsome, his outfit made a splendid appearance.
Since the Sawhorse could understand her spoken words, Ozma used no reins to guide him.

She merely told him where to go.

When she came from the palace with Dorothy, they both climbed into the Red Wagon and then the little dog, Toto, ran up and asked: "Are you going to leave me behind, Dorothy ?" Dorothy looked at Ozma, who smiled in return and said: "Toto may go with us, if you wish him to." So Dorothy lifted the little dog into the wagon, for, while he could run fast, he could not keep up with the speed of the wonderful Sawhorse.
Away they went, over hills and through meadows, covering the ground with astonishing speed.

It is not surprising, therefore, that the Red Wagon arrived before Jinjur's house just as that energetic young lady had finished scrubbing the Green Monkey and was about to lead him to the caramel patch..