Hamilton's Superior Quality Choke Chains That Are Perfect For Obedience Training . Super Strong Welded Steel Links, Chrome Plated To Guarantee Against Tarnish, Rust Or Corrosion. The size of these colars includes from end of ring to end of ring. To order the correct size, measure around your dog's neck and add 2 1/2" to 3". Size: Medium Chain /20 In Long. Search_Phrases: Pet Collar,Pet Lead,Dog Harness,Dog Products,Collars And Leashes,Steel Choke Chain,Hamilton Pet Company, Hamilton Medium Steel Choke Chain Dog Collar 20 In