Extendable arm with 2 or 3 sliding positions for stepless adjustment. Simply rotate the lock dial halfway to loose/tighten it to quickly stretch and lock it. The main unit is made of multi-layer wind carbon fiber pipe, which is both lightweight and high rigidity. In conventional arms, multiple arms can be connected by clamping the joint to adjust the distance between the camera and the strobe/light and the carbon telescopic arm can be used in a wide range of applications. Helps reduce the size of your shooting system. It can also be used as a telescopic pole for action cameras such as Gopro and for selfie and tracking photography. It can also be used as a foot for the inon underwater tripod hub.