UKC

The Grivel A&D Ascender & Descender is brand new for Autumn 2014 and incorporates a revolutionary and innovative patented system which features an in-built descender allowing for quick and safe transitions from heading up to going back down the rope. 

Read more at http://www.ukclimbing.com/gear/news.php?id=6594

In reply to UKC Gear:

Can you really just flick the cam off the rope when fully weighted to go into descend mode? That's either very clever or lethal; I can't decide which.

Anyone had a play?

In reply to UKC Gear:

Any likelyhood of a locking descender version for rope access applications?