Slip Streamer Short BaggerShield TB134-S DOT Approved Adjustable Height Motorcycle Windshield Adjusts in seconds without the use of tools Measurement is taken in the center of the shield from the top of the vent cut out to the top of the shield Made from 3/16&rdquo; Aircraft Grade Lucite&reg;&nbsp; acrylic- the industry's leader in clarity and quality .052&rdquo; thicker than OEM windshield offering increased strength