We love creative grids rulers here at the shoppe, and this 6.5" x 18.5" size gets lots of for trimming blocks and using with a 12" x 18" cutting mat.

This ruler has easy to read black and white markings in a one inch grid, with additional markings at 1/8 and 1/4 inch increments. 

Other Reasons We Love This Ruler:
- Turn-a-round feature makes it easy to cut by the inch on one side, and by the half inch on the other side
-Non-slip grip help keeps the ruler from sliding while you're cutting
-lines for 45 degree angles make trimming half square triangles & flying geese a breeze!