1.It supports rotation of any angles.
2.Tightened with a wingnut quickly and conveniently.
SmallRig Universal Magic Arm with Small Ballhead 2157 is equipped with 1/4” screws at both ends. It could attach camera cage, top plate and Top Handle 1955/1984 on the one end, while attach monitor or video light on the other end. It features a wingnut in the middle to adjust the angles and positions of monitor or video light or other accessories.