what djbowen1 said is probably acurate, if you have to use soap use something very mild. generally expensive glasses will come with cleaning instructions, if yours didnt you may want to check there website and see if they have some there
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No matter how fast I'm going, I'm in no hurry.
there are no bicycles in the valley, the only bicycle you find in the valley is the bicycle you ride down there.
Ride in the front, this space is available to anyone that wishes to take it-jjmolyet