It technically works

Reviewed by sarah from oregon on Thursday, May 12, 2016
It lights up, but you can't adjust it more than about an inch smaller than the largest size due to the plastic inside the collar. (It won't fit through the plastic part of the fastener.) I bought the large for my dog because he fit within the size range, but I can't get it to size down for him..
Previous Review “This Collar is Awesome!!! VERY Easy Sizing”