step1: Fine-tune the pupillary distance of your loupes by rotating the pupillary distance (PD) knob on the hinge to adjust the distance between loupes to align with your eyes.
step2: Adjust the angle inward.(Generally speaking.no adjustment is required by default).
step3: Tighten if necessary.
Packing list:
Loups 1 pc (2.5X/3.5X)
1.5X magnifier 1 pc
Color changing lampshades 2pcs
Charging rack 1pc
Battery 1 pc
Charger 1pc