Sierra Auto Tops BMW 1987-1993 3 Series (E30) Convertible Top, Ger Classic Canvas, Black Restoration Quality Convertible Top for the BMW E30 Chassis with factory original features Made from the original imported German Classic (Sonnenland) cloth topping material The DOT rated slightly green tint plastic window is sewn in and double stitched for durability Metal spring coils are sewn into a pocket around the window for the factory contour below rear window Front corners are reinforced for added durability and longer life