Hsthe Sea Measure Optical Vernier PD Ruler Pupil Distance Meter,Plastic Pupil Distance Gauge,Pupillary Distance Ruler,Glasses Accessories Equipment

• Pupil Distance Ruler Size: This PD Ruler approx. 21 x 5 x 0.7cm/8.26*1.96*0.27" (L*W*T). Measurement Range: 0-100mm.
• Satiafacation Guarantee : Please feel free to contact us if you have any questions. We will try our best to solve your problem quickly and efficiently.
• 【Material】Quality Material: These Pupil Distance Ruler are made of quality PVC material, and has non-slip handle, which is easy to operate and use,Not easy to damage, you can use it for a long time.
• 【Safe】Carefully polished and free of burrs, which will not hurt the facial skin, Lightweight for easy and portable carry.
• 【How to Use】 Keep your eyes straight ahead and keep your eyes on a still life in the distance; Put the notch over your nose, as close to your eyes as you can, then find the middle and read the line closest to the middle of the pupils.

Features: Pupil Distance Ruler Size: This PD Ruler approx. 21 x 5 x 0.7cm/8.26*1.96*0.27" (L*W*T). Measurement Range: 0-100mm. Satiafacation Guarantee : Please feel free to contact us if you have any questions. We will try our best to solve your problem quickly and efficiently. 【Material】Quality Material: These Pupil Distance Ruler are made of quality PVC material, and has non-slip handle, which is easy to operate and use,Not easy to damage, you can use it for a long time. 【Safe】Carefully polished and free of burrs, which will not hurt the facial skin, Lightweight for easy and portable carry. 【How to Use】 Keep your eyes straight ahead and keep your eyes on a still life in the distance; Put the notch over your nose, as close to your eyes as you can, then find the middle and read the line closest to the middle of the pupils.