The Chain Reaction Collar is a martingale-style collar that combines Ruffwear-designed TubeLok(TM) webbing and a short section of stainless steel chain. This collar provides limited correction with an audible cue, making it a great training tool. This collar also features a V-ring attachment option for use as a standard collar. Tubelok webbing with integrated reflectivity is colorfast and long-wearing Limited-cinch design and audible correction with stainless steel chain for controlled leashed walking Aluminum V-ring provides a secure leash attachment point Easily add or remove tags with Quick Ring(TM) Separate ID attachment point Silicone tag silencer 100% polyester Tubelok webbing Stainless steel chain Anodized 6061-T6 aluminum V-ring Silicone tag silencer Hand wash Mild detergent Air dry