Mechanical Watch Eyeglasses Lens Measure High Precision Measurement Tool Steel

Features: For use with both glass and plastic lenses. Quickly identify and check base curve. Precision 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: Material: Metal Size: approx 6.5x5.5cm/2.6x2.2in Measuring Range: 0-20mm

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.