National Cycle Dakota High-Impact Acrylic Windshields 4.5mm Windshield - 18.25in. H x 22in. W N2301AMade from slightly tinted DOT approved high impact acrylic plastic (4. 5mm thick with one piece construction) Uses same Mount Kits as Narrow Frame Heavy Duty windshields; Mount Kits sold separately High luster chrome plated outside trim Full sized touring shield for excellent wind protection Quality and durability at a great price