Waterproof Fi Fastener for Fi Series 2 Smart Dog Collar Beacon GPS Dog Tracker - Version 1 (White) (Fi GPS Tracker and Collar Not Included)

CONS: My dog is 70 pounds, so not exactly small. The tracker mounting case is bulky even on my dog's large collar. The edges of the case, while not carving knife sharp, are butter knife sharp and have easily cut and scraped my skin when my dog rubs up against me while playing. I ended up smoothing the sharp edges with a file. Putting the tracker into and getting it out of the case takes some strength. While I manage to get the tracker into the mounting case with some effort and choice words, I personally am unable to remove the tracker when it needs charging. That's where the husband comes in handy.PROS: The actual Fi collars are ridiculously overpriced. I like that this holder allows me to change out my dog's collars to non-Fi collars and doesn't cost a fortune.

It’s a bit bulky and hard to put the fii tracker in it. I recommend using a butter knife to slide it in. Unfortunately, the mount still comes off the collar while playing. It happens every other day. Not ideal but it’s the only option if your original fii collar is broken. It’s not perfect but I still recommend it.

I wound up returning this item as it was HUGE on my dogs collar. It was very sturdy, but not practical along with her training collar too.

I thought this was going to work but the plastic parts that the collar goes through have slits through in them and it fell off in the woods. Still haven't been able to locate it.

I read from others that it was hard to put the fi tracker into it but it was actually very easy.This product gets the job done after breaking your collar off the fi tracker. The holder is actually smaller than what you would think when you first see it once it’s on it’s pretty unnoticeable

This product was much larger than I anticipated and was bulky and clunky. I returned it. I have a medium sized dog and would never put this on him. Maybe it would be fine for a German Shepard or Great Dane, but not for anything smaller.Anyone with a 3-D printer can make these. It also did not arrive with any directions as to how to attach it or detach the Fi to fit into it.Great idea..but cheaply made product.

Bought this because I thought I would help with keeping the FI on my dog because the Fi kept braking at the connecting point of the collar. This didn’t help. When she wore it the device becomes quadruple the size and one a smaller dogs neck this isn’t ideal. It would even fall off when we had her on leash. My boyfriend ended up McGivering something with the Fi and fishing steal to keep the Fi on her collar.

Phenomenal! Game changer for my dog not having to wear his collar plus the tracker collar! I love it!