Broad arrow

Broad arrows can be purchased from any slayer master. They are the only arrows that can be used to slay Turoths and Kurasks. The arrow damage is somewhere between that of mithril arrows and adamant arrows. Broad arrows are confirmed to have a ranged strength bonus of 28, with mithril arrows having a bonus of 22 and adamant arrows having 31.

They require at least a standard Bow.

Due to the "Buy X" feature, Broad Arrows increased in price from 60 to 90 coins.

After the Smoking Kills quest, players can spend 300 slayer reward points to learn how to fletch broad arrows. This requires 52 fletching and gives 225 fletching xp for every 15 arrows made.

Fletching
Broad arrow heads (Found from Kurask drops or Slayer Masters) are attached to regular headless arrows to make Broad arrows. Making broad arrows yields some Fletching experience. It is required to have 55 Slayer and 50 Ranged to use them.