FIA Approved Racing Seat Side and Bottom Mounts Bracket Style Descriptions: (Purchase at bottom of page) OMP-HC/830 Tall model, in aluminium. Professional brackets equipped with a damper, which helps reduce the compressive stress (and associated injuries) on the spinal column while driving. Patented model. Bracket length: 495 mm Thickness: 6 mm Color: black. OMP-HC/833 Tall model, in aluminium. Bracket length: 495 mm Thickness: 6 mm Colors: black, red. OMP-HC/832 Tall model, in steel. Bracket length: 495 mm Thickness: 3 mm Color: black. OMP-HC/730 Low model, in aluminium. Bracket length: 400 mm Thickness: 6 mm Colors: aluminium, black. OMP-HC/732 Tall model, in aluminium. Bracket length: 400 mm Thickness: 6 mm Colors: aluminium, black. OMP-HC/731 Tall model, in steel. Bracket length: 400 mm Thickness: 3 mm Color: black. OMP-HC/733 Low model, in steel. Bracket length: 350 mm Thickness: 3 mm Color: black. OMP-HC/666/LE Universal aluminium brackets for seats with side attachments. Bracket length: 450 mm Thickness: 5 mm OMP-HC/660 Pair of steel "L" shaped brackets to fit seats with lower attachment points (type Y) to side brackets. Thickness: 3 mm Color: black. OMP-HC/665 Sliding rail kit to be mounted between the brackets and the seat. Not FIA approved. OMP-HC/666 Universal couple of brackets for seat with lower attachments. Not FIA approved. OMP-HC/729 Pair of flat brackets for fitting side brackets to vehicle specific seat adaptors. Anodized aluminium. Thickness: 10 mm Color: black.