This is a Manfrotto Combi Boom Stand with Sandbag. Extend the second riser of this medium duty black aluminum light stand to its maximum, press a lever, and you have a stand with a two section boom arm. When used as a boom stand, its maximum load is 11 lbs (5 kg) -- strong enough for a small light fixture with a small softbox or umbrella.
Sets up easily in a matter of seconds
Column extension locking collars made from pressure die cast aluminum
Boom telescopes from 44 to 84" (1.1 - 2.1 m).
Double leg bracing provides extra stability giving the stand more strength
This is a Manfrotto 013 brass double-ended spigot that fits 2940, 2941, 3077, 3077, 3085, 3087 and 3095. It has a 5/8" (16mm) diameter with 1/4-20 and 3/8" threaded tips. It is identical to/replaces #3094.