Used by shepherds to defend their flocks, it consisted of a strip of leather broad enough to contain a stone. A string was attached to each end of this strip. It was swung around fast and when one string was released the stone could be hurled out with great force and accuracy.

1 Samuel 17:40,49-50

David felled Goliath with a stone from his sling

Judges 20:16

Slings were also used by soldiers as weapons

2 Kings 3:25
1 Chronicles 12:2
2 Chronicles 26:14
Job 41:28

Slings were known for their destructive power

Zechariah 9:15
1 Samuel 25:29

Slings used metaphorically

Proverbs 26:8
Jeremiah 10:18

See also

4369 sulphur
5211 art
5545 spear
5613 weights & measures
7784 shepherd