6-Inch diameter measuring wheel. Measures in feet/inches, units of tenths of feet up to a 9,99.9 foot range, providing the added convenience of calculating mixed measurements on one project if needed. Extremely accurate makes it extremely useful to measure the boundary lines of your property and neighborhood. MULTIPLE APPLICATIONS: Versatile enough to use on a variety of indoor and outdoor projects, this tool is ideal for real estate appraisers, law enforcement, construction or landscaping workers and homeowners alike. Lightweight,portable and durable design.