Ultra thick 1/4" MR10 GE Lexan Polycarbonate Hard Coated (HC) Includes High quality, scratch resistant finish Windshield is cut with superior CNC 5-Axis Router... All edges are super-smooth Extremely durable custom nylon injected clamps All hardware (nuts & bolts) are stainless steel with black-coated finish.. No Rust! Easy to install... Do drilling required Comes complete with all mounting hardware & detailed instructions