http://www.trailspace.com/articles/2012/02/06/black-diamond-flicklock-pro.html
The new FlickLock Pro features:
* twice the holding strength of the original FlickLock,
* 20 percent lower profile,
* stronger, more durable stainless-steel construction (versus plastic), and
* a slightly heavier weight (the FlickLock Pro is 20 g, FlickLock is 16 g).

