This is one of the few keylock ovals on the market and the only one sold on backcountry.com. I bought it for use as a racking biner for my nuts. The oval shape and keylock nose make this perfect for this application. The down side to this biner however is its wieght. At 68g it is more than 2.5 times heavier than the 26g biner I use for each of my cams. It also makes it the single heaviest non locking biner I own. Thankfully I only use one.

I bought the O-Wall over other ovals (such as the BD Oval) because of the keylock gate. The keylock gate works great, the biner has a great narrow nose which fits well through small holes, and a very clean design. However, I have two gripes with it: it is heavier than every other oval on the market, and it isn't even oval! It's an oval-ish D-shape. This poses a problem when using it with pulleys like the Petzl Ultralegere which need to sit parallel to the carabiner's spine. A problem when using it for a hauling or rescue system.