Shop › Arri Stirrup Lock Knob (20 Pack) for D5, FL1k, SL2k Image 1 of 1 Arri Stirrup Lock Knob (20 Pack) for D5, FL1k, SL2k $77.45 Part No: L4.87764.E Arri Stirrup Lock Knob (20 Pack) for D5, FL1k, SL2k Pack of 20 Stirrup Lock Knobs for Arri D5 575 HMI, FL 1k and the SL2k. Add To Cart Added! Part No: L4.87764.E Arri Stirrup Lock Knob (20 Pack) for D5, FL1k, SL2k Pack of 20 Stirrup Lock Knobs for Arri D5 575 HMI, FL 1k and the SL2k. You Might Also Like Quick View Arri Glass Only for AS 5 - Frosted Super Wide Quick View Arri Stirrup Lock Knob (1) for Arri 150 Fresnel Quick View Arri Glass Only for AS60 - Wide Quick View Arri Glass Only for AS60 - Medium Quick View Arri Glass Only for 4k PAR - WIDE LENS