15mm Solid Dog Chain Collar Stainless Steel Necklace Dogs Collar Training Metal Strong P Chain Choker Pet Collars for Pitbulls PARAMETER PRODUCT:dog chain collar MATERIAL:stainless steel COLOR:black,gold,silver,bicolor,rose gold SIZE: 12 inches (recommended neck circumference 8 inches) 14 inches (recommended neck circumference 10 inches) 16 inches (recommended neck circumference 12 inches) 18 inches (recommended neck circumference 14 inches) 20 inches (recommended neck circumference 16