Keson Twin Wheel Small RoadRunner Measuring WheelMeasuring is quick and easy with Keson RoadRunner measuring wheels. These wheels are compact and often used for short runs and indoors. Popular with realtors, appraisers, roofers, police officers and homeowners. 5-digit, easy-read, magnified counter (9,999 feet & 10ths of any inch) subtract in reverse. The RP182 handle telescopes from 17 inches (fits into a toolbox or briefcase) up to 38 inches to measure without bending.Twin small solid rubber wheels. Adds in forward, subtracts in reverse.