The BC-18 Micro Ball Clamp from Really Right Stuff is lightweight and ultra-compact, which makes it a nice addition to your camera bag for travel photography or video needs.
The clamp's 1/4"-20 male threaded mounting post will fit into any bracket, cage, or video rig that contains a 1/4"-20 female thread. The screw-knob style clamp can hold most Arca-type compatible plates, and has a load capacity of up to 10 lb. The articulated ball joint has 45° of movement in four different directions, and it locks into place with the locking lever located right under the clamp.
The CNC machined 6061-T6 aluminum Micro Ball Clamp has an black anodized type II finish, making it wear- and corrosion-resistant.