UIAA Certified Auto Locking Climbing Carabiner Clips 25KN Heavy Duty Large Locking Carabiner Clips for Rock/Ice Climbing Rappelling D Shaped 3.93 Inch, Large Size, Black

I'm using these to pull gear up to catwalks and they've done exactly what they need to! No flex or distortion from the first bit of use, and no signs of wear and tear after a few jobs. Solid!

Good quality metal and easy to use safety slide

Critical locking carabiner for all types of climbers. It locks via spring tension and unlocks the same way, so strengthen those fingers up! I tend to use this second to my manual locking carabiner just as a safety thing but if I need it as my primary, it’s ready to use!

Very nice, the price is awesome .. one issue i noticed, since i use these when i on climbing trees, i wish the gate was a little bigger, but they work great, so i am not really complaining, but if you stuff a lanyard or two in them, you will not be able to open them up to get them back out, well yes you can, but when you are "one handing it" on a rope, wiggle wiggle twist, is kind of a serious pain in the @SS

These locking carabiners have a smooth finish without any sharp surfaces or edges. The gate functions well, is easy to twist and open with one hand, and snaps shut quickly. It's a good size for smaller hands to operate.The KN rating is the same as some of my other carabiners. These are noted as being UIAA certified, but I can't find any certification info for them. They're almost identical to others carabiners I have so it makes me wonder if these are generic carabiners and branded by whomever chooses to resell them.I'm not a climber so I can't comment on whether I'd trust these carabiners for that activity. I'll be adding these to my rescue kit and using them primarily for mechanical advantage setups for gear recovery and other gear related rigging.

These have been great for saddle hunting. Easy enough to open with gloves on, but not opening on their own. They seem durable and have supported me at free hanging. Hopefully not going to test a fall.

I have really liked the quality of this product.

Good size for trailering, easy to use and very strong. I DO NOT USE FOR CLIMBING. I use them for trailer break away. Very easy to lock and stay in place.