This model is suitable for sizes : XXS, XS, S, M, L, XLWidth of the collar is for XXS, XS, S - 1,6cmM, L, XL - 2cmBlack Edition collection collars are both good looking and comfortable accessories for your dog. Thick and strongleather is all measured to size, cut, edge treated and screwed to place by hand.Screws give extra strenght to your dog collar, since they are secured in place.All our black edition collection products have black metal fitings.