This is a fantastic product. One of the best dog gear items I've purchased because it solves a specific problem well and is manufactured with excellent materials. For almost a year I followed Leerburg's advice of using the backup Dominant Dog Slip Collar with a prong collar, clipping the bolt snap on my leashes to both collars at once. That method works, but even with the right size slip collar, there are drawbacks. The first is you still need to add a flat collar or harness for visibility and for a grip handle if needed. The second is the slip and prong clipped together can lead to weird feedback on pulls and can get snagged. This attachment solves both of those problems.

Instead of a slip collar, you can use a highly visible flat collar or harness. This adapter works with both. I regularly use the Ruffwear Flagline harness with this adapter and it works well, length isn't a problem. I use it daily with a heavy duty flat collar with a handle. No issues. The other big benefit is you can use this with any leash you own. Daily walk leashes, or hands-free leashes I use for running or hiking. That's the big advantage this has over the leather and biothane prong collar leashes offered by Leerburg. I bought the biothane version, and returned it after a week. It was not nearly as good as this adapter for this use case. When you attach your own leash to this adapter, you get the advantage of 360-swivel from your leash. With the prong leashes, you don't. Mine got twisted constantly on walks and it was really annoying. This adapter is much better than a dedicated prong collar leash.

I do have two suggestions for Leerburg to make this product even better. Some people have complained about the weight. It is heavy, but I got used to it quickly. But there is no reason for the shorter prong collar section to have the bulkier leather and bolt snap. A prong collar deters your dog from putting too much force into a lunge. Why does the prong collar section of this adapter have bulkier materials than the backup section? The longer backup section has thinner leather and a smaller bolt snap, but that section is supposed to hold your dog in case the prong collar fails. Which has happened to me multiple times, and it holds up. Use the small bolt snap on both sections, it'll reduce the weight and still work great.

The second is consider a scissor/lobster snap for the prong collar section. The one consistent issue I have with Herm Sprenger prongs is the flat D-ring. With jiggling and force, that D-ring has slipped out of bolt snaps. In fact, almost every time my prong collar has failed, it was because the D-ring slipped out of a bolt snap, and not the prongs coming apart. A different snap would fix this design flaw of Herm Sprenger prongs.

*** thank you for the feedback, I've passed it along to Ed and the team

The previous review is right about the heaviness of this adapter. The quality is good though! Well, good for them I will be grabbing the lighter version as well lol, and fast delivery time!!

Very sturdy and just what I wanted for extra control in case prong collar comes undone. However, the large fastener that attaches to the small ring of the quick release prong collar is too heavy - the other fastener for the plain collar is lighter and smaller but the leather part is too long to work effectively on the prong.

Brilliant!! I have the whole prong collar leash with the two clips, and it has saved me from losing my dog multiple times. When she rolls in the snow, sometimes one of the clips will come undone from her collar or harness (I use a regular collar and harness, instead of a prong collar and regular collar). She was still secure on the second clip, so even though she's part Husky and wanted to run to Canada, she stayed safe. Thanks Leerburg! You really saved the day!! Having one of these adapters is a super back-up plan.