lenses
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Tools
These are some common tools used to work on this device. You might not need every tool for every procedure.
Identification
Open the temple arms and read the code printed on the inside of one of them, for example "OO9102-01 55□18 137". OO9102 is the model, 01 the colour variant, 55 the lens width in millimetres, 18 the bridge width and 137 the temple length. The number before the □ symbol is the lens size you need when looking for replacement lenses: the OO9102 comes in 55 and 57 mm, and lenses of different sizes are not interchangeable.
