I recently got the resin click tracks from WW2 Productions in Australia, shipping was a bit a slow to Canada but it was worth it.  These tracks are a lot like the out of production Anvil Minitures tracks, as they just click together to assemble.

The casting of the tracks is good, their weren't any air bubbles except very small ones on the occasional link.  Their was also no warping on any of the links.  The tracks assembled very easily as once they were cleaned up they just click together.  Cleaning up the tracks was simple, they come individually in a zip-lock bag, all you have to do is clean up the flash with a toothbrush or #11 blade.

The tracks are made to replace the rubber band style tracks that are included with the Tamiya Marder III kits, and fit well around the tamiya sprockets.

Overall the tracks are excellent, only thing I don't like is sometimes they do come apart especially during painting and need to be snapped back into place.

For different views on this track set please check those other reviews at http://www.track-link.net/reviews/935 and http://www.track-link.net/reviews/926 .