Aolove Mushrooms Rivet Studded Adjustable Buckle PU Leather Pet Collars for Medium Large Dogs (Large, Red) Large size: 1.4"*22"(3.5cm*56cm), Neck 18-21"(46-53cm) / Please check the pet's neck size before you confirm the order Material: PU Leather + Alloy 5 adjustment holes for adjustment Strong and durable high quality PU (Faux) leather,Nickel-plated hardware and heavy duty D-ring to help protect its neck Fashionable and personalized designed for your pet