The Wigzi Dual Doggie 2 Dog Retractable Leash keeps leashes from getting tangled when walking two dogs at once. Each lead lets you control each dog individually, with a maximum pull of 50 pounds on each leash. The leashes also feature a generous 10-foot lead length for each dog's freedom of movement while on the walk. The patented 360-degree spin technology enables each lead to properly lock and then be released by the dog walker.