Arri Spigot 28 mm, long, with flange & allen screw, fits profile stirrups without sleeve cuff

For more accurate light positioning: it helps keep the light in horizontal position independently on the angle of the boom. Specifically designed to be used on boom arm with light attachment with 16 mm pin.

The Avenger E300 5/8″ Stud with 1/4-20″ Female Thread screws to the top of a light stand, stud or accessory that ends in a male 1/4-20″ thread. It lengthens and strengthens an existing fixture mount.

The Avenger F831TH Baby Female Swivel with Ball can convert an arm or dowel up to 16mm (5/8″) in diameter into a boom arm. It can add versatility to your non-swivelling light fixture (with optional #013) to make it more versatile. Each end has a locking Baby 16mm (5/8″) receiver. The ball joint has a pull-and-lock aluminium alloy handle with anti-rotation springs. It weighs 0.8 kg (1.76 lb).