#AA – Articulating ArmPneumatic articulating arm comes with post for mounting to an existing table. $1,675.00 each.Details#LD – Locking DiscsDiscs fit in to the tracks on the top of your screen table. $13.65 each.Details#SIW – Spline Insertion WheelEasily attaches to your articulating arm for easy spline insertion. $24.00 each.Details