Not sure what the maximum load is (it says 2kg), but it feels sturdy enough for things like sound recorders, LED lights etc
Webshop: DX.com (Deal Extreme)
Price: $24.70 (Free shipping)
The overall feel of this one is that it's strong, solid and can take bit of a beating and long term use. Very versatile with the different mounting options.
It's heavy, meaning it's not pure or normal aluminum, but some sort of alloy as it says in the description. Not sure what this alloy really is. The ball joints are a bit rough, but a little oil or grease fixes that.
Buy it here