Review on Pawtitas XS Teal Lumberjack Padded Martingale Dog Collar With Reflective Band For Maximum Visibility, Comfort And Safety - Fits Small & Large Dogs by Roy Ramos

The adjustable size feature would be great, except for the fact that it slides too easily and the collar loosens to the point where it will pull straight off of the dogs head. I have one for my other dog, that is set to the largest size so there is no room for loosening, but for my other dog the collar keeps coming off. Doesn't take long to get loose if your dog pulls much. My dog is only 16 lbs, so I'm guessing it wouldn't stand a chance on larger dogs that pull at all. It's a shame, because other than that big flaw, I like the rest of the design a lot.