This is a Photoflex Heavy Duty Swivel Mount bracket. It is a versatile aluminum bracket that will fit on almost any light stand. The reversible threaded stud (3/8" and 1/4") enables attachment of various lighting and grip items.
Transfers the weight of your softbox to its speed ring, relieving your light head, and providing better balance atop a light stand
Bracket tilts and swivels to make aiming the light or flash easy
Has a locking umbrella socket that will accept umbrella shafts up to 3/8" diameter