The strongAncol Check Chainstrong is a great way to walk dogs with a tendency to pull whilst on walks. p The unique design of the check collar means that it tightens when your dog pulls, and then loosens when they come to heel, teaching them to walk correctly. This medium chain collar is made from mild steel, with a high quality chrome plating, and the links are welded together, to ensure the maximum safety whilst out and about with your dog. Check chains should always be worn under supervision, and used correctly, are a great way to train your dog.p strongAncol Medium Check Chain 50cm (20")strongp