4Types Measure Optical Vernier Pd Ruler Pupil Distance Meter Eye Ophthalmic Tool

Features: 100% brand new and high quality The pd ruler can help you when you want to buy glasses online Put the notch over your nose, as close to your eyes as you can, then find the middle if your pupils in a mirror, Read the line closest to the middle of the pupils. Come With 4 different types rulers which suits different need, And 3 types are soft rulers , and 1 type are hard rulers. Note That this does not come with any instructions, So if you don't know how to take a PD measurement, you will need to look that up on the internet.

Description: Material: Plastic Length (mm):180/7" Width(mm):25/1", Quantity: 1PCS.

Package includes： 1pcs * PD Rulers

Notes: Please allow 1-3mm 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. Thank you! The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.