Photo 1 of Mayerzon Dog Collar, Patented Martingale No Pull Collar for Small Medium Large Dogs with Buckle for Walking Training, Hidden Design (Black, Large,2.5mm,25-Inch,18.5-23.5" Neck)

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Photo 1 of Mayerzon Dog Collar, Patented Martingale No Pull Collar for Small Medium Large Dogs with Buckle for Walking Training, Hidden Design (Black, Large,2.5mm,25-Inch,18.5-23.5" Neck)Photo 2 of Mayerzon Dog Collar, Patented Martingale No Pull Collar for Small Medium Large Dogs with Buckle for Walking Training, Hidden Design (Black, Large,2.5mm,25-Inch,18.5-23.5" Neck)