Contractor duty| Rolatape® re-invented the most accurate measuring wheel back in 1950| Rolatape® quality remains unmatched. Use this steel measuring wheel indoors or out. 40 1/4in. high. Handle folds for easy portability at 22 1/4in. overall. Wide, hard-rubber, traction tread. Counter guard for reset knob.3-foot circumference wheel is precision calibratedAccurately measures up to 100,000 feet