● Bullet shape tip to ease insertion
● Double ended instrument
● (A) Marks at diameters 0.5, 0.6 and 0.7mm
● (B) Marks at diameters 0.8, 0.9, 1.0, 1.1 and 1.2mm
● Round handle, overall length 103mm
● 31mm maximum diameter
● 21.5mm height
● Cone-shaped instrument designed to reflect the microscope light in concentric rings on the cornea to detect astigmatism