Mithril javelin heads

Mithril javelin heads are items that can be made at level 56 Smithing, granting 5 javelin heads and 50 experience per mithril bar. They can be fletched into mithril javelins at level 47 Fletching when used with javelin shafts, which are made by using regular logs with a knife, granting 120 experience per 15 javelins made.