This is the Manfrotto 587B Blackmagic Pro Stand that can support your large light fixture to a height of 18' (5.5 m). The 587B works with a strong, safe and reliable double winch system. The lift system of the 587B is fast and smooth and locks automatically to prevent any "back-sliding" of your fixture.
The 587B has four double-braced folding steel legs. The stand sets up easily in seconds. Its top attachment is aluminum and will accept your Junior 1-1/8" (28mm) mount fixture. Wind bracing is possible with your cables or ropes attached to the rings at the top of the stand.
With its double handle, you can easily hoist up to 440 lbs (220kg) from its 5.4'minimum height
Four steel legs comprise the base -- each leg's shell wall is 3mm thick
Tested for 2000 complete extensions, overloaded to 1100 lbs (550kg)
Tested for 100 hours under salt spray to observe any reaction of the black anodized finish
Self-Locking -- automatically stops "back-sliding" when you release the handle
Two locking teeth applied to the main cog wheels
Two automatic clutches
Safety pin releases the leg sections for positioning
Four leveling devices for working on uneven surfaces up to 6° inclination
Collars have maintenance windows to enable observation of the condition of internal components