Sierra Auto Tops BMW 1994-1999 3 Series (E36) Convertible Top, TwillFast II Canvas, Black Stitched with matching colors using the finest bonded polyester threads DOT approved heavy gauge sewn-in, tinted press polish plastic window for superior visibility Factory style sewn-in plastic retainers pre-drilled for an easier and more accurate installation Front corners are reinforced with moisture resistance PVC for added durability Deck seams are heat sealed using specialized tape to eliminate heat seal press marks on exterior First Quality Haartz Twillfast Cloth/Canvas Precision cutting with automated computer guided equipment The entire top is cut from the same bolt of cloth for consistent color &amp; pattern Stitched with matching colors using the finest bonded polyester threads DOT approved heavy .040 gauge sewn-in, tinted plastic window Factory-style rain guard sewn-in along length of convertible top to direct water flow Factory-style sewn-in plastic retainers pre-drilled for easy, accurate mounting Deck seams are heat-sealed using specialized tape to eliminate heat-seal press marks on exterior Windows are double stitched and include finish trim piping on the outside Front corners are reinforced with moisture resistance PVC for added durability