1.The sun-visor board is made by strengthen acryl board,have high intension and tenacity,can blocks harmful UV& sun glare,safety enduringly using. 2.It can effectively block UV,no need to face the glare of sunlight. 3.Scrattered the strong light from the car in front of you during driving at night .Make the strong light becomes soft. 4.Visual clarity in rain and fog weather. 5.Elimination of eye fatigue,maintain mental focus. Dark plate for blocking the sunlight. Light plate for blocking the car lights.