Guardian Gear Nylon 2-Way Small Dog Coupler with Nickel Plated Swivel Clip, 4-Inch, Mailbu Blue 2-way dog coupler is the easy way to walk 2 dogs on the same lead Designed for small breeds Made of durable nylon with nickel-plated swivel clips Available in mailbu blue color Each coupler measures 4-inch length by 1/2-inch width