Martingale leather necklace

For dogs who, like my Bowie, easily get out of their collar by pulling back (these dogs are said to "pull like foxes", I don't know why...), this type of semi-choke collar is ideal! Like the other collars, it closes with a buckle, but has an adjustable metal part (nickel-free). This greyhound collar is made from Italian vegetable-tanned leather, lined and hand-stitched. Whippet collar height 5 cm, large greyhound collar height 6 cm (at widest). I would like to draw your attention to the fact that you need to be extremely precise when measuring the neck size for this model (ideally, you should send me the length of your usual collar between the buckle and the adjustment hole, and I'll take care of the rest). Please also indicate the desired initial.