(Inthespring) ไม้บรรทัดออปติคอลวัดระยะทาง Pd เครื่องมือวัดสายตา 5 ชิ้น /
Welcome to Inthespring store have a good shopping!
Feature:
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.
Long Handle Eye Occluder Optometry
Note
That this does not come with any instructions
So if you dont know how to take a PD measurement you will need to look that up on the internet.
Description:
Material: Plastic
Length (mm):21.5cm/8.46
Width(mm):5.5cm/2.16
Quantity: 5PCS.
Note:
Size for manual measurement there may be a 0 to 2 cm error belongs to the normal phenomenon.
And due to the difference between different monitors the picture may not reflect the actual color of the item. Thank you!
Package includes:
5pcs/setX Eye Occluder PD Rulers