LupinePet 3/4-Inch Suzie Q 14-20-Inch Martingale Combo Collar for Medium to Large Dogs Limited-slip martingale action prevents a dog from backing out of its collar 3/4 wide , appropriate for the widest range of dogs, from Terriers to Sporting breeds For leash-walking and training Proudly built in Conway, New Hampshire GUARANTEED (Even if Chewed)