Manufactured from 1/4in. MR-10 Hard-Coated Polycarbonate Hard-Coated on BOTH sides for the best in scratchresistance protection Trailerable at Highway speeds Utilizes easy to assemble cam-over molded clamps with brass inserts or metal plate hooks Manufactured by CNC process Automotive grade rubber weather strip seal at cowl Variety of Adjustable Venting options for driver/passenger comfort Fits with most OEM and aftermarket roofs.