Two part windshield is made from DOT approved 3/16" aircraft quality Lucite acrylic. The lower portion is dark smoke with a clear upper flip portion. The upper portion can be flipped in secods from hiding behind the lower portion to extending above from 10.5" to 21.5". Can also adjust up and down with the OEM windshields adjustment. Each windshield comes iwth two sets of hardware; quick release thumb screws or blind mount allen head cap bolts.