I'm totally baffled by the different types of collars and google isn't helping me much.
What would be the best collar for a medium/large dog? He's a mongrel, possibly a mix of Rottweiler, German Shepherd and something else. He's reasonably good on a lead although can pull a little bit.
Any suggestions on what's best? He's getting on a bit so I want him to have something that's comfortable but that he can be walked in every day. He has had a choke chain his whole life but I have read that they were never supposed to be used for walks.