When a tough, all-purpose measuring wheel is needed, nothing fills the order like the Rolatape 400 Series. Its 4-foot circumference handles the toughest measuring needs for heavy construction, large commerical operations, utility companies, land surveying and other critical measuring applications. When measuring demands are tough, the 400 Series gets the job done. Unit of Measure: Feet up to 100,000 Feet. Size: Diameter 15 1/2″ Color: Flo Orange & Black.