Anti-Twist Rod Mount - Space GreyMounting a follow focus can sometimes be a pain. This tiny little mount helps to fix that. It is a ?-20 mounting screw with a single Arri-mount anti-rotation pin. This makes mounting to the front of many camera cages super simple. Once mounted screw on any compatible M12 screw (1.75mm thread pitch) to our 15mm rods.Features:• Anti-Twist Rod Mount• Super lightweight at 7g• Invisible mount focus rod• ?-20 mount for tight mounting locations• Single Arri anti-twist pin• 7g/0.25 oz.• 17mm W x 15.5mm T x 18.5mm D