ConvaQuip® Heavy Duty Crutches offer three sizes of steel adjustable axillary crutches. Each size has an overall range of 8" from lowest setting in 1" increments. The hand grips can adjust to four different settings. These settings will range in 1-1/2" increments from lowest to highest. All 500 Series crutches are rated to 600 lbs. All measurements are with underarm pad and tip installed. Each crutch weighs approximately 5 lbs. each. All models are sold in pairs only. Ships UPS.