The Stanley Intelli Level MW40M Counter Measuring Wheel is gear driven with a tough plastic housing. It has a 5-digit counter with a manual reset button. The wheel is made from die-cast aluminium and fitted with a wear resistant rubber tread. Fitted with a heavy-duty, metal folding handle with rubber grip for easy handling. There is also a folding wheel mount. Supplied with 1 x Manual and 1 x Carry Bag Specification Max. Distance 9999.99 Metres Wheel Diameter 318mm (12.5in) Working Environment Built for exterior use, larger wheel for rougher ground Working Accuracy & plusmn 1% Typically Units of Measurement Metres and Tenths of a Metre