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Show I FIX GLASSES ON HEADLIGHTS Vibration of Car May Cause Looseness Loose-ness of Lens and Allow It to Creep Out of Position. Many of the light diffusing devices mw popular are designed to operate when In a certain fixed position. VI-iration VI-iration may loosen the glasses In their Iras so that the whole lens creeps iround and the diffusing properties are lost. Some of these glasses have means of anchoring them firmly in place, but others have not, and it is up to the car owner to see that thej are properly In place. Screws may be used for fastening them and a lock washer should be inserted under each of them. |