Tweezerman Light up MirrorSee the light! Isolate even the finest hair for precise, easy tweezing with our optically correct and lighted 10x magnifying mirror. Clear from edge to edge with no distortion you won't miss a hair. Great for any precision tasks, from tweezing to make up application to contact lens insertion. Suction cups attach to any smooth surface. Moisten cups for stronger hold. Don't use in direct sunlight. To change battery, unscrew the two screws from the back