the Dog Helios Surfside Designer Leash and Harness combination features an extremely durable cable with a nice designer print pattern. Features an ultra soft foam-like Grip and rubberized connecting points to ease tension. This leash also features am engraved swivel hook attachment. Sizing Specifications - (In Inches). Leash is 48" SM - Chest Circumference - 10.62 - 13" Weight - Less than 22 Lbs MD - Chest Circumference - 13.77 - 16.5" Weight - 23-44 Lbs LG - Chest Circumference - 17.72 - 21.65" Weight - 45 - 66.13 Lbs