The Dragon full helm is a members-only item and a part of the dragon plate armour set (lg) and dragon plate armour set (sk). To wear a dragon full helm, you must have at least 60 Defence.

There are two ways to obtain a dragon full helm besides through trading:

Obtain one as a very rare drop from a mithril dragon in the Ancient Cavern
Receive one from a barbarian spirit after lighting a pyre ship with Chewed bones (also very rare).

The dragon full helm is the most expensive piece of dragon armour. Many players thought the helm would fall in price a while after its release, but the dragon full helm, being a very rare drop from mithril dragons, showed no significant signs of a price drop until the release of PvP worlds. Then, as a result of many dragon full helms coming into the game from PvP worlds, the price dropped significantly, from over 50m in September 2008 to under 10m by May 2009. Then, on the 16th of June, 2009, dragon full helms were removed from the PvP world drop tables.

Before the release of the dragon full helm, many players thought that the full helm would never be made, since players had been requesting it in the official forums for such a long time, and often these kinds of requests would result in items such as the spinning plate (dragon platebody) and the toy kite (dragon kiteshield).