Swivel AUTO-Locking Carabiner Replacement

Solid component. Locking mechanism is very easy to use. They also sent loads of replacement bolts in case you were them out.

This ended up being a necessary upgrade as my original Tuenne leashes all came with the ball pivot thumb lock you, and ultimate broke at the shaft just below the ball pivot. I have had these for years, my dog pulls me around in my longboard and these have lasted! Worthy upgrade.

Been using this for about a week with my Belgian Malinois. So far so good. Its holding up no problem. The auto locking is pretty neat, but undoing it is a bit tricky. It'll take time to get used to opening and closing, at least for me

Ordered a custom double lead leash for 2 of my Huskies as a "test" to see what the overall quality and worksmanship of the product was. Have been HIGHLY Satisfied! Enough so that I am ordering a 2nd double leash for my other two Huskies.
So all 4 dogs will be walking in style with a TUENNE leash and collar.

This is a perfect upgrade. The ball style would end up getting stuck and not rotating after a while. This design is much better and the smaller carabiner is also better for our small dog. Lastly, the twist lock gate is much better than the screw gate.