Coastal Titan Chain Training Dog Collar, 3-mm, 20-in

1.5-mm, 10-in 1.5-mm, 12-in 2-mm, 14-in 2-mm, 16-in 2.5-mm, 18-in 3-mm, 22-in 4-mm, 22-in 2.5-mm, 20-in 2.5-mm, 22-in 3-mm, 24-in 3-mm, 20-in 4-mm, 24-in 4-mm, 28-in