The Walktax is the new way to measure distances. Thread distance meter for fast and exact measuring of distances up to approx. 9,999 feet. Belt fastened. One man does the work of two faster and more exact than with measure tape or line. Both hands for free. After measuring, you simply break off the thread - made from biodegradable cotton - and leave it to disentegrate. Also available in Metric - measures to 9,999.9m in meters and decimeters. Comes with one spool of thread - replacement thread sold separately. Walktax walktax$106.95Measurements: WA3F FeetWA3D Metric White Cotton ThreadWhite biodegradable cotton - 9000 ft. spool. T-24$4.35 Orange Cotton ThreadOrange biodegrable cotton - 9000 ft. spool. M-25OS$5.35 Need more information? Please feel free to contact us at 1-800-592-6940 - Ask for Extension 547 or Internet Sales.