Drow Flail

Drow Flail is an enchanted flail +3, which can be gained in the Underdark from drow warriors. It has +3 bonus to thaco, inflicts 1d6 +4 points of damage, weighs 15 lbs and a speed factor of 4. Like all items made from adamantine, this will turn to Adamantite Dust when exposed to sunlight.This item appears in Baldur's Gate II: Shadows of Amn.

In-game description
"Drow Flail: The flail is a sturdy wooden handle attached to an iron rod, a wooden rod with spikes, or a spiked iron ball. Between the handle and its implement is either a hinge or chain link. The weapon was originally used as a tool for threshing grain. This item, like most drow equipment, is created using Adamantine, an alloy of adamantite that quickly turns to dust if removed from the Underdark."