Mayerzon Martingale No Pull Dog Collar, Reflective Walking Collar for Large Medium Dogs Pitbull Belgian Malinois Doberman That Pull, Anti Pull Dog Collar with Buckle for Training Hunting (Black, M) Black Medium,2.5mm,11"-15"Neck is up for auction in Pet Supplies. The current bid is $3.00, 88% below the $24.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.