I had the same problem as the other reviewer, initially thinking that the clip just wouldn't fit and was sized wrong, but it turns out the clip WILL fit on, it's just a struggle and was an inappropriate choice for the manufacturer to use the same heavy-duty clip on the leash for smaller dogs. The whole clip and whatever you call the other metal piece near it are WAY too big dangle around like a boulder ready to knock your little breeds out if they don't watch out. Apparently no one tested the product before selling? I've had it for several months and it's a great quality collar and leash, just a super ridiculous choice of hardware. I'd love a new set if Chewy fixes this, my DIY fix isn't that great, but at least my dog isn't afraid of it any longer!
I don't understand how this product works. The clip for the ripe leash is too thick to clip onto the collar. Why sell it as a bundle if they're not compatible? The quality is nice but the leash doesn't work with the small size collar.