Leash Lady~3 Dog Adjustable Coupler with Swivel Snaps on Both Ends~1/2" Wide Nylon Webbing~for 10-20 Pound Dogs Strong nylon webbing Strong but lighweight steel swivel snaps on both ends of couplers to help avoid tangles Comes in several colors~I have 16 colors to choose from Walk 1, 2, or 3 dogs with one leash Adjustable lengths