Coastal Pet Products DCP6209BLK Nylon Li'l Pals Adjustable 2-Dog Coupler with E-Z Snap, 5/16-Inch, Black Li'l Pals 2-dog coupler is designed specifically for puppies and toy breeds Made of soft nylon material making comfortable and stylish Perfect accessory for walking two toy breed dogs at once using just one This coupler is adjustable up to 24-inch length Each arm on this coupler measures 5/16-inch width