I bought one of ebay that ended up being useless. The plunger housing was really crappy plastic. The housing hit the side of the lens and I couldn't screw it on most of my lenses. And the squeeze thing was too weak to advance the plunger anyway.
All the ones on ebay look about the same. The ones in Calumet don't really look any better.
Anywhere to find a reliable, very long cable release?
Or are their cool little timer gadgets to use instead?