WHEEL MEASURING PRO 11.5" WHEEL (FT). This product is a Keson 11.5 metal frame measuring wheel that features a metal shelf that helps keep out debris and dirt to prevent them from coming into contact with the critical meter. It also has a steel frame that's tough enough to handle any terrain, and its barrel clamp locks the handle vertically while releasing it for storage in a second. Plus, it can withstand constant heavy use, whether you use it for extreme environmental conditions or rolling on an asphalt road.