This useful tool combines the following features:

Maddox rod. Occludedr. Red Lens. Fixation Targets (1mm and 1.3mm) Multiple Pinholes.

Millimeter Rule. PD Rule. Palpebral Scale. Corneal Scale.

Fixation Targets including one letter and one symbol 0.6mm, 0.8mm, 1.00mm, 1.6mm, 2.0mm, and 2.5mm letters.

Made of durble plastic.