ADJUSTABLE READING GLASSES USAGE: 1. Each lens needs to be adjusted individually, so please cover the other eye when adjusting. 2. Cover one eye with your hand and look at an object 5 meters away. At the same time, use your other hand to turn the button back and forth to the left or right until you can see the object clearly. 3. Cover the other eye and repeat the second step. 4.After adjusting the left and right eyes separately, use both hands to fine-tune the left and right swivel buttons to find the configuration that best suits you. PACKAGE INCLUDED: 1 x Reading Glasses 1 x Glasses Case 1 x Cleaning Cloth