Keson RR112 Measuring Wheel (Graduations: ft. & in.), 4-Inch Diameter Comprehensive offering for general purpose to specialized high performance applications Consistent performance from wheel to wheel through superior manufacturing processes This product is made of high quality material Accurately measures curved, vertical, and horizontal surfaces Popular with realtors, appraisers, roofers, police officers, and homeowners Accurately measures curved, vertical, and horizontal surfaces Popular with realtors, appraisers, roofers, police officers, and homeowners Weighs only 1.2 pounds Telescoping handle allows for customizable height Ideal for quick estimating jobs