DRITZ-Fons & Porter Diamond Ruler.
This 60 degree diamond ruler is designed to cut diamonds that finish from 11in to 6in tall.
coordinates with both the Fons & Porter Triangle Ruler and Hexagon Ruler (not included);
this ruler does all the math for you;
easy-to-understand directions printed on the ruler and easy-to-understand instructions with photos and ideas for combining 60 degree diamonds and related shapes are enclosed.
Ruler is clear acrylic with black and yellow markings.
Ruler measures: 13 x 7-1/2 x 1/8 inches.
Made in USA.