Sparco side mounts are used to mount competition seats. Side mounts have mutliple side holes that provide a customizable mounting position. All Aluminum construction available in powder coated black only. The 90 degree Aluminum Side mount is ideal for vehicle applications that have limited room for seat mounting. The smaller footprint allows for more mounting options. The Aluminum bracket will not work on the QRT-R Seat, see the Sparco QRT-R Side Mount or the UPR Narrow Base Seat Bracket. .