Joy of joy, I have gone from being bounced around my Captain Mallory to walking with an absolute Gentleman. Being Belgium Mallinois he goes crazy at other dogs and cats, but with this collar, it is now no problem. I only had him 6 weeks and was so nervous about causing him pain, but it is the otherway around, he is so thick skinned, he looses his brain and this collar brings him loyally back..! Thank you !.x