Ruffwear Chain Reaction Martingale Dog Collar Assorted Colours Color:Basalt Gray 5mm Sole lug depth 5mm Sole lug depth Bridgedale’s best selling length The Ruffwear Chain Reaction Martingale Dog CollarLimited cinch martingale collar that combines reflective Tubelok™ webbing with a stainless steel chain KEY FEATURESReflective Tubelok™ webbing is colorfast and long wearingMartingale design for dogs who can back out of traditional collarsShort section of stainless steel chain is strong and has a limited cinchAluminum V ring and stainless steel O ring provide secure leash attachment pointsEasily add or remove tags with Quick Ring™Separate ID attachment pointSilicone tag silencerWHAT’S NEW: Webbing now includes recycled content for a reduced impact on the planet