Disk wheels for measuring? Just get brush caught in your spokes one time and you'll know one of the reasons the Rolatape 415 was developed. The 415 keeps you measuring accurately, down to the nearest inch, through the roughest conditions. Construction sites, geological field applications, engineering and trail-blazing all give the 415 a chance to shine. APPLICATIONS - Heavy Duty Construction, Paved/Unpaved/Gravel Roads, Main Extensions, Utility Installations, Trailblazing, Engineering Features: All Steel Contruction - Heavy duty strength and durability Solid steel disk wheel - Measures through brush without catching in spokes Measurement units on disk circumference - Provides measurements in inches, tenths of feet. 5-digit steel counter - Records up to 100,000 feet convenient reset knob Wheel Stand - Keeps wheel upright when not in use Wheel brake - Transport to second site without losing existing measurement Rolatape Model 415 Distance Measuring Wheel 1800-415$137.95 Rolatape Model 415D with Dual CountersSame features as above with two counters. 1800-415D$159.95 Need more information? Please feel free to contact us at 1-800-592-6940 - Ask for Extension 547 or Internet Sales.