As you can see on the left, the leads are long enough so that if I wanted to bring Golly back to me (she's standing), I could give a gentle tug on her lead without correcting Roc, who's being a good boy and sitting. The leads are long enough to let Roc explore trees when Golly doesn't want to. When we're walking, the unique swivel lets the dogs change position (left or right, behind or forward) without tangling the leashes.