Unique Design Glasses Parallel Measuring Instrument ABS Eyeglasses Parallelism Ruler Pupil Distance/Height Test pupil distance ruler pupil distance measure pupil distance measuring tool
Features:
ABS material, durable & sturdy.
Easy to use with accurate values.
Excellet for solve the problem of glasses detection.
Suitable for begineers & professionals, easy operation.
Measure the pupil distance, pupil height and whether the left & right are parallel & symmetrical.

Specifications:
Material: ABS
Size: approx10x21cm/3.9x8.3in

Package Includes:
1x Parallel Measuring Tool

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.