Plastic retainer attachments that have pre-punch holes lined up to mounting points Precision cutting with automated computer guided equipment Stitched with matching colors using the finest bonded polyester threads Includes Heated Glass Window Heat-sealed seams for added strength and durability Black Cloth, Canvas with Heated Glass Window. This convertible Top is an excellent factory style glass window replacement for the 2006-2015 Mazda MX-5. It is the original factory one-piece design with listing panel and no deck seams. It includes pre-punched plastic retainers to ease installation. This convertible top is the Miata original factory one piece design with listing panel. The rain guard is sewn along the sides of the top. Includes a new tinted DOT approved glass window with embedded defroster wiring. The window is bonded to the convertible top using an advanced window bonding system that is guaranteed to not fail for one year. There is no piping or stitching around the window visible and no unsightly heat-seal press marks. This top is made from Haartz Stayfast Canvas, which was an original material beginning in 2003. Although it is not an original material as prior models, it makes an excellent upgrade from Vinyl because of its richer look, silkier feel and improved durability.