Promotional Sand, Gravel & Stone Ruler Calculator

• A ton of help comes in the form of a small package, our new Sand, Gravel & Stone Ruler Calculator!
• Sleek designed silver calculator-ruler made of durable vinyl.
• Simply enter the length, width and depth of the area you want to cover. The calculator will estimate how many tons of material you will need!
• An ideal item for construction companies, developers, carpenters, home improvement stores, and much more.