Overview fur saving chain collar with long links wire gauge 4 mm suitable for dogs with long and fine fur two O-rings with the Herm Sprenger quality stamp Stainless steel - solid: the highest tensile strength among all Herm Sprenger materials, so links won’t abrade even after years of use increased rust resistance as it will not rust even if the surface is damaged suitable for conditions of high humidity has a high-gloss surface contains nickel, so will not do for nickel-reactive dogs it doesn’t stain light fur in 9 out of 10 cases Care wipe it down with a clean, damp cloth for more stubborn dirt, use a little water, some mild soap, and a soft-bristled toothbrush after cleaning, wipe it down with a clean, dry cloth This chain collar consists of a chain with 1/6 inches (4.0 mm) wire gauge and two O-rings. Long links of this chain collar do not damage, knot or tangle long and thick dog’s fur. This chain collar is made of stainless steel. Being made of this material, the collar is the most proficient product for all situations in the dog's life. Because of the seawater resistance and the rust proof characteristics, the item will serve for many years showing no signs of rusting. And here is why. Chromium and nickel are present throughout stainless steel, not just on the surface (compare - steel with chrome coating that can be easily damaged and result in rusting). Because of this, the microscopic layer will form itself anew, even when the steel is cut or scratched.