Keson RoadRunner 1 ft. Measuring Wheels
These handy measuring wheels measure curved, horizontal, and asymmetrical surfaces. Weighing less than 2 lbs., the 3-section handle telescopes up to 38â€ť for measuring without bending, and it telescopes down to 17â€ť to fit into a toolbox or standard briefcase. Measures 9,999 feet, 11 inches (or 9/10ths of a foot with the engineerâ€™s model) without resetting, plus it adds while rolling forward and subtracts when pulled in reverse.