2" Wide Sharp Spiked Studded PU Leather Dog Collar - Adjustable Pitbull Bulldog Collar for Medium & Large Dogs (S/M/L/XL) - White & Black Punk Style - Perfect for Training, Protection & Fashion Statement

Bought it thinking it would look cool, and it does, but not the kind of thing you would have on your dog 24/7. First, dog does not seem to be comfy while wearing it. If bought for protection of the dog, then it makes sense. I only use it to walk the dog in my neighborhood because there are stray dogs around.