This circular prism lens is about 6 inches in diameter and set in a frame with a handle.

This enables its user to detect minute details, granting a +5 bonus on Search checks.
It also aids in following tracks, adding a +5 bonus on Survival checks when tracking.

Prerequisites: Craft Wondrous Item, true seeing.
Cost to Create: 1,500 gp (plus 500 gp for base item), 120 XP, 3 days.