Constructed from chrome-plated steel links that are argon welded for added strength, this chain collar resists tarnishing, rusting and breaking under regular use. It is offered in a heavy 3 mm link gauge across several overall lengths, letting handlers match the collar to a dog's neck size and training needs. The chain forms a slip-style loop that tightens briefly for a correction cue and loosens once tension is released, making it suited for basic obedience work and leash training with dogs that pull. Each collar is a single ready-to-use unit that requires no assembly. Length is measured as the inner diameter of the assembled loop, not including the end rings, so checking a dog's neck measurement beforehand is recommended. Because it applies direct pressure to the neck, the collar is intended for supervised training sessions rather than continuous or unsupervised wear.