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Perfect Pi Diameter Circumference Tape Measure - Imperial and Metric Tape Measure 1/2-inch by 12ft / 3.5m - Use for Measuring Cylindrical Objects - (Pipe Tape, Tree Tape) Model DCT120 - - Amazon.com
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Precision Outside Circumference Tapes by Pi Tape Texas, LLC, Our Precision Outside Circumference Tapes are available in the Blue Easy to Read material.
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