Square Me Up Ruler

Square Me Up Ruler (SMUP) in a fun ruler! Designed to be used with 10" squares of fabric to make 4" finished size half-square triangles. Use prepackaged 10" squares of fabric or cut four 10" squares from 1/3 yard of fabric. Make 8 perfect 4 1/2" half-square triangles from two 10" squares of fabric. 

Also makes 1 1/2" size half-square triangles from 5" squares of fabric. 

A fun tool. Non-slip coating on the back makes it easy to use.

Use for squaring up 7" Crazy Curves block too!