Umbrella Mount Swivel Bracket Adapter is made of aluminium with 5/8'' (16mm) receiver on both ends that would connect stands or accessories with a standard 5/8" spigot to make pivoting the speedlight and umbrella easy. Both ends are joined by a tilting pivot and a metal handle to secure and lock it in place. This bracket swivel adapter allows you to use an umbrella with the provided locking umbrella socket with shafts up to 3/8" or 9mm in diameter.