Description The 5063 adds forward and subtracts in reverse. Its polyurethane covered metal measuring wheel provides traction and durability, and dual metal side plates keep the unit stable on the rail. It comes with a carry case for easy transport. A Definitive tool for accurate measuring of rail track. This robust, quality product was designed with input from international railroad companies and is in daily use worldwide, featuring heavy duty wheel and incorporates metal side plates keeping the wheel stable on the rail. Features: Unit of measurement: Metres and centimeters, Feet and Inches Accuracy ± 1% Measures up to 99999.9m, 99999ft 11inches Single or dual large display mechanical counters Adds forward subtracts in reverse Supplied complete with carry case 3-year guarantee *Calibration Certificate available upon request