Guardian Gear Steel Choke Chain Dog Collar, 6.0-mm x 30-in

3.0-mm x 20-in 3.0-mm x 18-in 4.0-mm x 24-in 4.0-mm x 28-in 6.0-mm x 26-in 6.0-mm x 30-in 6.0-mm x 28-in