Lightweight Hertel Exophthalmometer

This Oculus Brand Hertel exophthalmometer is constructed for many years of use. Overall dimensions are 25 x 7 x 2 cm. Weight is 117 grams (4.1 oz). Scale for orbital wall goes from 75 mm to 121 mm. The scale to read the proptosis ranges from 0 to 35 mm. Does not include case. Comes with instructions.