Herm Sprenger Flat Chains 3mm 51122 Chrome ??Flat Links Check Chain Dog Collar The Sprenger Flat Chains 3mm 51122 Chrome ??Flat Links are part of our Specialized range of check chain dog collars, the flat link style has a flat surface apparently filed onto the top & bottom of each link, this causes the chain to catch the light as the dog moves around presenting a jeweled appearance, often used for dog showing & just as often used by doggie show-offs. Each mm link thickness is suitable for different uses. The 3mm check, not chock chains are the one of our medium, slightly heavier sizes available. Flat link Check Chains are suitable for medium to large dog breeds these chains are often used for dog training and by the everyday dog owner. About the finish: Our quality Chrome Plated chains undergo first nickel, and then chromium plating to produce that strong metal shine. Chrome Check chains are strong, durable, but not recommended for dogs that spend, time, around water, especially saltwater, or dogs with skin sensitivity. Link Thickness 3mm Chain Length 40cm, 45cm, 50cm, 55cm, 60cm, 65cm