Yea, my baby once chewed his tag and scratched it all off. But I have no idea how he would be able to chew his collar off.... unless it was just to loose or too large. Make sure you get one for a little tike. I actually don't even put a collar on my baby anymore. When he goes outside I put a harness on him and he is to busy out there to notice the harness. But he does know when the harness comes out it is time to go outside and he loves it.
