Montolio's Clasp

Montolio's Clasp is an item which can be added to Montolio's Cloak by Cespenar to unlock the magical properties of the cloak. This item appears in Baldur's Gate II: Throne of Bhaal and Baldur's Gate II: Enhanced Edition. It's not known where this claps can be found.

In-game description
"This clasp belongs to the cloak of Montolio DeBrouchee, the blind teacher of the famous drow ranger Drizzt Do'urden. It hums with powerful enchantments locked within."