Curved bone

A Curved bone is an item dropped by monsters that drop big bones 100 percent of the time, such as Hill giants, Moss giants, Mogres, Fire giants, Trolls, Ogres, Cave Horrors and Warped tortoise's.

Curved bones give 15 prayer experience points when buried, though this course of action is not recommended. Curved bones may be sold to Barlak, a cave goblin found in Dorgesh-Kaan, for 2,000 coins. Players will also receive 2,250 Construction experience, if their Construction level is 30 or above.