I-BOSOM 14.5"-17.5" Spikes Nailed Two Wide Leather Dog Collar in Pitbull Mastiff, 25 Spikes Nailed 44 Studs 100% Brand New & High Quality Material: Faux Leather Strong and durable high quality PU (Faux) leather. Light, elegant and not stiff Overall length 20", will fit 14.5"-17.5" neck Nickel-plated hardware and heavy duty D-ring