Photo 1 of Martingale Dog Collars - Reflective Dog Collar with Quick Release Buckle Adjustable Nylon Training Dog Collar Suitable for Puppies for Small Medium Large Dogs. Red M:1''Wied for 13.5"-16.5''Neck

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Photo 1 of Martingale Dog Collars - Reflective Dog Collar with Quick Release Buckle Adjustable Nylon Training Dog Collar Suitable for Puppies for Small Medium Large Dogs. Red M:1''Wied for 13.5"-16.5''Neck