Johnson's 1877-0100 Measuring Wheel features a 3 piece telescoping handle that extends from 17" to 42", an ergonomic non-slip rubber grip handle, rigid aluminum frame, a 5 digit counter and a Structo-Cast® wheel with rubber tire. Measuring wheels are used for indoor and outdoor construction projects whenever long range measurements are required such as road construction, estimating parking lots and driveway installations and resurfacing, pouring concrete, measuring buildings and lot lines. Interior applications include gyms, commercial hallways and residential room measurements. Users include surveyors, civil engineers, landscape architects, paving crews, insurance representatives and others. 5 digit, easy-read magnified counter accurately measures up to 9,999 feet, 11 inches. 3 piece telescoping aluminum handle extends from 17 inches to 42 inches - fits into a tool box or briefcase. Durable, rubber tire - 4 inch diameter. Rigid aluminum frame. Ergonomic non-slip grip.