I use them all the time. In my area its really hard to buy any collar that isn’t really tacky with a belt buckle type buckle. So we have forever been using plastic. My dog that I use it with is only 45, maybe 50 lbs max. He does pull a lot on walks but it has never snapped and we have had the same collar for about 2 years. We did buy a new one because his was getting so dirty at daycare and that one snapped on the first day but only because a Rottie was biting into it. He now has a cheesy belt buckle one for daycare lol. But we still, for two years have been using a plastic one and it’s holding strong. However, he’s small so that may be why.