Glasses maintenance1. When putting on or taking off the glasses, please use both hands: gently hold the temples, and remove it with one hand will destroy the left and right balance; when wiping the lens, please hold the middle beam of the frame with one hand (do not hold the lens Leg), wipe gently with one hand, otherwise the frame may be deformed or the screws may loosen over time.2. When placing, do not place the lens face down: the lens face should be placed up or up, if placed down, place the most important lens center for wear.3. Fold the frame from the top first: Most frames are designed to fold from the top, so if you fold to the right first, it will be more laborious and will cause the frame to deform.4. When wiping the lens, please try to use a special lens cloth or soft paper towel: do not use corners or hand