Sparco Universal Aluminum Seat Brackets. Like new. Installed for fitment, then the plan changed. One set of brackets are new and never installed, one set was installed but never driven or raced (mock up bolt in). Perfectly good and 100% safe. Selling for less than new! Ask any questions. Fits most Sparco seats. Part number 600W. Sold as one set of 4 that will do both front seats.