The new A&D from grivel is an ascender and descender in one. The slot in the handle is the descender and all you need to do it pass the rope through it like you would a standard belay device and unlock the descender. If you need a handled ascender for aid climbing or ascending fixed ropes then this is well worth a look! It comes in left and right handed versions.
2 product reviews
Not as sturdy as some of the offerings of the same tool from other brands (ie. Petzl) but offers a rugged tool with the multipurpose use. The mechanism is a bit looser and grittier than the petzl but I would trust it the same given what I've come to expect from Grivel. For the price I'd recommend this to anyone looking for an ascender with a comfortable handle.
The multiple use style of design seen routinely from Grivel gives you the ability to accomplish two things with one tool, meaning you can pack lighter, or Atleast know you have a backup.
As expected from Grivel, this works great. Sturdy, smooth and easy to use with the added benefit of an extra rappel device (really easy to switch from jugging to abseiling). There are lighter alternatives out there, but none can be used for descending.