Pair of RST7BKRD Racing Seats+Mounting Bracket for Mazda Miata MX-5 NA High Performance Reclinable PVC Side Bolsters Nylon Cloth Racing Seat (Included Universal Sliders) Deep Thigh Bolsters to Keep the Driver Firmly Placed in Seat / Support for Shoulder and Lower Back Strong, Durable Steel Frame Covered with Comfortable Injection-Molded Foam Padding Works with All 4-Point , 5-Point and 6-Point Seat Belts Application: 89-97 Mazda Miata MX-5 (Instruction Not Included, Professional Installer is Highly Recommeded)