SmallRig Extension Arm With Arri Rosette 1684C is designed for handle extension. The extension arm is compatible with Cameras and accessories with arri rosette, such as rosette handle 2784. It could be both a male and female head with an M6 screw on the end and arri rosette (diameter 31.8mm) on both ends. The arm itself has an Arri locating hole and 1/4 "-20 threaded holes for attaching accessories such as articulating arm 2115.