This ruler does the math for you.
Package includes clear ruler with black and yellow markings
Easy to understand directions printed on the ruler
Made in USA

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 7 inch
Height : 0.5 inch
Length : 13 inch

Item Weight: 4.16 ounce (View shipping rates and policies)
Shipping Weight: 4.8 ounce (View shipping rates and policies)

ASIN : B001UAM46C