I love the Fi Fastener! My brute of a dog (Great Dane / German Shepherd mix) blew through his original Fi collar when a squirrel dared cut through our yard. I found this item through my Etsy search, and I’ve slept much better since I got the Fi Fastener! I had a question around the initial installation, and I got a reply from Brian so fast that my head almost spun around. :) He immediately offered a phone call, and we got right to the root of my issue! This company will go the extra mile to make sure their customers are satisfied. Highly recommend!

I had the fi fastener for series 2 first and was super happy even though it was bulky, no issues. I upgraded to Fi series 3 and wanted a new fastener to go on my e collar setup since the Fi can turn off the e collar (happens at least once a week) Got my order in and unfortunately it broke when I had to take out the fastener first time and I reached out to seller and they were sooo amazing at customer service and quickly sent me a replacement!! I will continue to support this business!

Brian and his team were amazing! I had ordered the wrong size and he was super willing to send me out the right one. He also sent over videos on his to get it installed. So happy to be able to use my custom leather collar with the Fi for my girlie! Thanks again Brian!

Great product! Seems very durable and looks great too! I love that It’s waterproof, durable, matches my girl’s other gear, and that I can still use the FI’s light with it. Their customer service is also great! Very helpful, doesn’t take a long time to respond, and is very professional.

We purchased a fi holder for our new puppy and when it arrived we realized we ordered the wrong size. I went into chat and got an immediate response to send it back and he would send out another one. Brian was responsive and very accommodating. Highly recommend this shop. Thanks again!

Love this product! I have a 70 pound dog that pulls hard and has a thick neck and tiny head so I have to use a martingale. I didn't want him to have to wear 2 collars and did not trust the Fi connectors, so I went searching for a solution and this is it. Customer service is excellent. Unfortunately I did have one from the first batch (has now been reformulated) that broke after a few months, but they sent out a replacement immediately and so far so good. I will definitely do business with this company again.

Fit my Tiles PERFECTLY. My dogs like to run out the door sometimes and this tile holder securely holds their tiles to their collar. Fast shipping and great packaging.

I received my Fi holder & it works great. I was able to put it on Indie’s 1/2” collar easily. Now we can get back to work knowing she’s safe. Thanks so much for a quality product. My dog Indie is a 5yo border collie who works sheep. She helps me move them from place to place, separate them into different groups, & whatever else needs to be done. On days we’re working, she can cover several miles. She listens to my whistle commands & can work several hundred yards from me & control close to 100 sheep by herself. I can send you a video if you’d like.