Just attach your own leash and GO! The Sporn Double-Dog™ Coupler is our best selling product for walking 2 dogs! You have the option of walking two dogs close together, far apart, or dogs of different sizes. The straps are made of quality nylon webbing, and all metal parts use durable custom nickel-plated steel for reliable strength. The Double-Dog™ Coupler is compatible with any leash type.