Strong and sturdy all nylon belt, not cord, retractable leash * Easy one button brake and release with a super smooth retracting mechanism and ergonomic handle * 3 Year warranty, no assembly required * Case made out of a recyclable ABS plastic * SM: 9 feet, holds up to 28 pounds. Handle opening 2 3/4-Inch in height. MED: 15 feet, holds up to 48 pounds. Handle opening 3 1/4-Inch in height