WE CANNOT STRESS ENOUGH HOW WELL THIS CHEST EMBLEM WORKS. Humans have been conditioned to recognize this symbol and subconsciously comply with its message.  Out of any and all the messaging you may have on your gear set-up, this symbol will always be the first to be seen and complied with. This premium quality GLOW IN THE DARK Stop Sign snap-on patch fits perfectly over the triangle ring of all of our Y-Front harnesses and is a bulls-eye target of recognition when it comes to any onlooker visibility and acknowledgment. It makes an enormous statement and is stunning visually as you and your pup are out and hard at work. We have countless consumer testimonials on how effective this emblem is in public.