If you experience problems with leash tangling, try one of this durable couplers. These tools were made to achieve comfort during walking 2 dogs simultaniously.
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The leashes are steel chrome plated and can withstand 2 pets' tension and pulling. The couplers are practicable and won't be damaged over the time. Welded links make the metal couplers almost unbreakable. The leads also look super stylish and refined.