Metal Professional Ophthalmic Lens Clock Base Optician Lens Curvature
Features: For use with both glass and lenses.
Quickly identify and check base
scale is uncrowded and easy to read.
Convenient to use and easy to carry in a pocket.
Professional to measure dioptric power of a lens and calculate the radius of curvature.

Specifications: Metal
Size: approx 6.5x5.5cm/2.6x2.2in
Measuring

Package Includes: 1x Eyeglasses Lens Measure

note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item.