Chain training collar
Pinch training collar for large dog, prongs can be removed to make it smaller. I recommend learning how to train with this type of color before using it. It is not meant to be used as a punishing tool to pull on a dog when they are pulling you. When they are pulling stop and wait. Tell them easy. When they loosen you also loosen and give a treat. It teaches them when they have a loose leash, They are not pinched. It can work well if you know what you’re doing.