The RockLock has to be the best twist lock around. I was looking for a larger twist lock pear shape carabiner with a large gate opening to use on my cowtails for caving and this hit the mark. This is the largest opening I can find in a twist lock. Twist lock is super easy to open with thicker/muddy gloves on. Easier to clean/decon and durable. Larger opening makes these super easy to use at anchors, quick to clip safety lines, or to clip the ledge above your anchor knot. I also use these for making a top rope anchor as remember to screw the gate down, I’m bad with that, and it doesn’t take two hands to manipulate like a trilock. I can not recommend these more.
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