Glow ring

A glow ring was a magical ring that gave off a soft glow, useful in nighttime thieving and other illicit activities.

Description
It was a silver ring set with an opal. A command word was typically inscribed within the band.

Powers
Activated and deactivated by the whispered command word, the opal radiated a cool, dim glow, similar to moonlight, to about 3 inches (8 centimeters). It was enough to read by or perform detailed work, and could not be seen from far away. It did not work in magical darkness.

Usage
The glow ring was made specifically for rogues to open locks and conduct spying.

Notable owners
Several glow rings were known to exist in Faerûn, typically in the possession of leaders of thieves' guilds. The master thief known as Silverfox had a glow ring.