The Rotating Knob is made of aluminum by CNC machine. The specification of threaded part is M5 13 mm with djustable design. Compatible with 15 mm rod clamp, DSLR handle grip with 15 mm rod clamp, Rod Clamp Extender Riser Rail Block, and all standard M5 thread holes accessories, such as camera rig, cage, QR plate, shoulder support, and so on.
Convenient and comfortable adjustment
It is spring loaded, and can be pulled out and turned to a more user friendly position after being tightened