Ruler

Description

Item Name: PD Ruler

• MATERIAL: Made of high quality PVC material, lightweight, flexible, high transparent
• DESIGN: Classic straight-edge design is suitable for both eyes, and the nose bridge design helps to keep the PD ruler centered and fixed to ensure accuracy
• APPLICATION: Three different printing scale functions can be measured on a ruler, single PD or double PD
• GENTLE REMINDER: Instruction manual for PD measurement is not included, but it can be easily found online. If you need help, please contact us