Version 1.0 is made of nicely machined aluminum. Version 2.0 and 3.0 are plastic. Version 3.0 hooks onto Gladiator track.
Many people think this item is over-engineered and would rather prefer a hook on the ceiling. I think it looks cool and is a rare find because it is discontinued by Gladiator.
Here it is in the closed position:
Here it is in the open position:
Here's someone's video of the Claw:
I cant wait till I hang my vintage BMX Bike on the ceiling. Maybe I'll get lucky and find another one...
Gladiator Claw Version 1.0:
Retail price: $30+
Craigslist price: $10.