These Smiley Face fixation targets have long-lasting lithium batteries. Yellow lights flash on and off around the face. Targets can be handheld or attached to any object with tape or a magnet. Set includes two Flashing Smiley Face Targets with 9 mm magnetic disks for mounting. Attaches to retinoscopes or ophthalmoscopes. Twist to turn on/off.

Dimensions: 1.18" (30 mm) in diameter.