ANCOL CHAIN COUPLE MEDIUM Ancol chain couple is really useful item if you have two dogs to walk together. Ancol Chain Dog Lead Couple is a very strong chrome plated steel chain coupler. These couples are great for attaching two dogs to a single lead making walking two dogs much less stressful! Made from Ancol's medium thickness chain these couples are perfect for using with most breeds of dog. With a single ring at one end to securely attach your lead and two strong trigger hooks at the other end to clip to your dogs collars. A good quality, durable product.