An assembly of rated chain and attachment for the purpose of leveling a stage batten.
Theatre & Stage Equipment Products - Trim Chain
Previous models, used for a variety of rigging tasks, consisted of a 3" diameter welded ring, 18"-36" of chain, and an un-rated snap hook (mutt hook). These are almost extinct, and rightly so.
http://www.mutualhardware.com/Rope-...lamp,-Rigging-Hoists/Trimming-Chain-Snap-Ring
Theatre & Stage Equipment Products - Trim Chain
Previous models, used for a variety of rigging tasks, consisted of a 3" diameter welded ring, 18"-36" of chain, and an un-rated snap hook (mutt hook). These are almost extinct, and rightly so.
http://www.mutualhardware.com/Rope-...lamp,-Rigging-Hoists/Trimming-Chain-Snap-Ring