The SmallRig 11 Inch BumbleBee Edition Rosette Arm Support features 1/4"-20 screws and stretchable pins at both ends for securely attaching such accessories, particularly with anti-twist holes, as monitors, LED lights, microphones, mobile phones, iPads, action cameras, etc. The thumbscrew helps lock accessories and has holes for a hex spanner for further tightening; and the ball heads, which are 360-degree adjustable, come with a spiral pattern to increase friction and bear up to 3kg of load. At the stainless steel rosette joint, there is a spring for easier angle adjustment. An ergonomically designed anti-off thumb lever, with a built-in thrust ball bearing, feels smooth and comfortable and quickly locks arm and ball heads in a second. This rosette arm is CNC machined for more robustness and durability and is also equipped with pads on both accessory mounts to prevent scratches.