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 * Small is 9 feet in length and holds up to 28 pounds. Handle opening is 2 3/4 inches in height (see chart); Medium is 15 feet in length and holds up to 48 pounds; Handle opening is 3 1/4 inches in height (see chart) * Small is 9 feet in length and holds up to 28 pounds. Handle opening is 2 3/4 inches in height (see chart). Medium is 15 feet in length and holds up to 48 pounds. Handle opening is 3 1/4 inches in height (see chart).