Reed pens (Greek: κάλαμοι kalamoi; singular κάλαμος kalamos) are a type of writing implement with a long history. They are made by cutting and shaping a single reed straw or length of bamboo. Reed pens with regular features such as a split nib have been found in Ancient Egyptian sites dating from the 4th century BC. Reed pens were used for writing on papyrus, and were the most common writing implement at the time the New Testament of the Bible was written.