This item includes 2 brand new Sheppard & Greene Ferret harnesses and lead sets AND a tandem coupler which will allow you to walk two ferrets with one lead. Each harness and lead set includes a 72" lead so you can walk them separately or you can use the included tandem coupler to hook them together and walk them with one lead. The harnesses themselves are "H" style and attach with velcro. The front legs of the "H" go around the ferrets neck and the back leg of the "H" goes around the ferrets tummy just behind the front legs. This harness adjusts from the size of a quarter to the diameter of a soda can to fit just about any size ferret. The harness also includes a bell so you can keep track of your ferret should you wish to let him play with just the harness on.