Feature●Designed to accurately measure distances on smooth hard surfaces up to 10, 000 feet●Use it to measure on flooring, countertops, or smooth pavement in feet and inches, down to 1 inch●Use it to measure on flooring, countertops, or smooth pavement in feet and inches, down to 1 inch●The lightweight aluminum handle quickly collapses down from 30-inches to 19-inches for easy storage●Perfect for general contractors, home remodels, appraisers, estimators, crime scenes, or any project that requires accurate measurements of distances on hard smooth surfacesDescription The Zen port WM100 4" Walking measuring twin Wheel is designed to accurately measure distances on smooth hard surfaces up to 10, 000. Use it to measure on flooring, countertops, or smooth pavement in &", down to 1". Zen port measuring wheel WM100 4" Mini surveyors walking distance measuring wheel the dual molded wheels have a 4" Diameter & allow stability & control for precise measurements. The lightweight aluminum handle quickly collapses down from 30" To 19" For easy storage.