Indespensible
I use this along with the Julius K9 IDC power harnesses for both my working line German Shepherds, typical of the breed they like to flank me and also stay close to each other, something that just isn't practical with a run of the mill lead, it just wouldn't be safe, being able to have them safely connected to the same lead, stops myself and the dogs getting tripped up and keeps us all safe & comfortable, definitely recommend you purchase with the harness.