AOLOVE Basic Classic Leopard Print Adjustable Leather Pet Collars for Medium Large Dogs Medium size:1.26"*20"(3.2cm*51cm),Neck 14.5-18.5"(37-47cm) / Large size:1.26"*22"(3.2cm*56cm),Neck 16.5-20.5"(42-52cm) Material: Leather+Alloy 5 adjustment holes for adjustment Strong and durable high quality leather,Nickel-plated hardware and heavy duty D-ring to help protect its neck Fashionable and personalized designed for your pet