For T-top cars, these T-Top to Body Seals are designed to fit models with the factory T-top option, replacing OEM #20211820/20211821. Crafted by Metro Moulded Parts, these seals are 30% softer and more durable than other brands, ensuring a snug and long-lasting fit. They feature excellent memory retention, providing a tight seal to keep out water, wind, and debris, while maintaining the classic look of your vehicle. These seals are compatible with 1978-1987 Buick Regal, Chevrolet Monte Carlo, Oldsmobile Cutlass Supreme, Oldsmobile Cutlass Salon, and Pontiac Grand Prix models, as well as 1988 Chevrolet Monte Carlo and Oldsmobile Cutlass Supreme cars. For a complete restoration, matching T-Top Side Rail Seals are available under part number ELP 5020. Backed by Metro's 30-year warranty, these seals offer peace of mind and exceptional quality for your restoration project.