The Dual Dog Swivel Couplers allow you to walk more than one dog at a time using your current leash. The leads won't get tangled up with each other as the dogs move around as the swivel moves with them.
The Couplers are available in two different widths and lengths and all of them are adjustable:
Each Coupler features a brass swivel and two brass snaps. Plus, each one has a cast slide allowing you to adjust the length of the strap from the swivel to the dog.