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 Stirrup Socket (Metal) w/ Thumbscrew Kit for all 5/8" Quick View Arri Glass Only for AS60 - Wide Quick View Arri S360 POCO (power control) Quick View Arri Stirrup to Head Mounting Set for ArriSun5 Quick View Arri Control Panel / Display Silver C Version