YOU ARE PURCHASING ONE 300 Yard CONCRETE VOLUME ESTIMATOR CALCULATOR SLIDE RULE. THIS WILL CALCULATE/ESTIMATE THE CONCRETE YARDS REQUIRED TO FILL AN AREA. Used to calculate concrete yardage required for cylinders, piers, circular and rectangular slabs. Unit measures 7" long by 1-1/2" wide. Unit is made of heavy duty plastic.Easy instructions are printed directly on the slide rule. THESE ARE MADE IN USA!!!!
Great Christmas or Birthday gift for a Masonry Contractor!! The item "Concrete Slide Ruler 300 Yard Volume Calculator Slide Rule MADE IN USA" is in sale since Tuesday, March 22, 2016. This item is in the category "Business & Industrial\Building Materials & Supplies\Contractor Guides & Manuals". The seller is "robco-sales" and is located in Lenni, Pennsylvania. This item can be shipped worldwide.