Black Diamond Oval Wire Review
The Black Diamond Oval Wire earned high scores in our rope pull smoothness metric. They are ideal for top-rope anchors because it has a wider rope-bearing surface that reduces friction. In fact, it had some of the lowest friction of any other non-locking carabiner. They are also great if you are setting up a carabiner break rappel. This product is also good for racking slings and pitons because the gear can slide around easily. Some aid climbers also like to use them for their aiders and daisy chains because they help you avoid "biner shift"; however, in the big picture, this isn't a huge deal.