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, the player must have at least 60 Defence.
A dragon full helm could be combined with a dragon full helm ornament kit (or) to make a gold-trimmed dragon full helm (or), with a dragon full helm ornament kit (sp) to make a spiky dragon full helm (sp), or with a dragonbone upgrade kit to make a dragonbone full helm. None of these cosmetic enhancements change the stats in any way.
Official meeting point for the product committal is:
World 1 West Varrock Bank
Additional Downloadable Content