Designed to fit a wide range of side mounted race bucket seats from Sparco, Corbeau, NRG, etc. With up to 3.5" of adjustment forward and backwards as well as 3" up and down these brackets make finding a comfortable and sturdy seating position for most drivers. Multiple drivers heights and widths available, fitting most seats from 16-20" and 20"+ wide. CNC cut, bent and powder coated in house. Sold in driver side or passenger side.