- "The reindeer were about the size of Shetland ponies and their hair was so white that even the snow hardly looked white compared with them; their branching horns were gilded and shone like something on fire when the sunrise caught them"
- ―Chapter 3 [src]
They were described as above; large deer the size of Shetland ponies, a brilliantly white colour, with horns that shone like fire.
They carried Jadis throughout all of Narnia until Aslan brought an end to her winter and they could not pull the sledge any further, after which Jadis, Ginarrbrik and Edmund Pevensie got out and walked. Jadis had Ginarrbrik cut the harness, saying that the reindeer would find their own way home.
Nothing else is known about them, and the only other white Reindeer spoken of was the White Stag.