YOU ARE PURCHASING ONE ASPHALT TONNAGE ESTIMATOR CALCULATOR SLIDE RULE.
THIS WILL CALCULATE/ESTIMATE THE ASPHALT TONNAGE REQUIRED TO COVER AN AREA.
Easy instructions are printed directly on the slide rule.
unit measures 8" long by 1-1/2" wide.
Unit is made of heavy duty plastic.
THESE ARE MADE IN USA!!!! REALLY!!!!!!