Brey Krause Sport Seat Back BraceThe Brey Krause Model R 9019 is designed for use with factory, reclining sport seats, and is engineered to extend the protection of your roll cage to the back of your seat. The Brey Krause adjustable seat brace is designed to fit all styles of roll bar cage tubing when used in conjunction with the Brey Krause back brace mounts (sold separately). Once bolted to the roll bar, the seat brace can be adjusted fore, aft, up or down. Note: Back Brace Mount