Dogs My Love Real Leather Red Spiked Dog Collar Spikes, 1" Wide. Fits 14"-17" Neck, Medium Breeds Strong and durable genuine leather. Light, elegant and not stif Nickel-plated hardware and heavy duty D-ring. Trimmed with thick contrast color waxed thread. Overall length 20", will fit 14"-17" neck 1" wide 3/16" thick genuine leather 4 metal enforced adjustment holes