A 4 mm stainless steel dog collar is the strongest option of Herm Sprenger collars. The 4 mm stainless steel fur saver is accounted to withstand tensile strength of a dog with weight up to 187 lbs (85 kg). The other feature to note is that a black stainless steel fur saver will suit for dark-haired dogs only as it may leave marks. Long links of this fur saver speak for themselves - that is a great option for dogs with long and fine fur. Smooth long links will not pull and cut it.
A "live" ring glides smoothly along the polished chain to supply the required action and stop a dog to pull or direct him in training and walking.
Black plating is made by galvanizing providing extra strength of the chain. Besides, a stainless steel dog collar is fully rustproof and may be used in wet conditions and in contacts with water.
We sell metal dog collars by ForDogTrainers and Herm Sprenger for many years and may assure that black plated and chrome-plated metals may leave marks on light fur of dogs. Curogan, stainless steel, and brass alloys do not leave marks on light fur in 99%. However, there are some dogs that have reactions even to those metals for unpredicted reasons.