The perfect ruler for turning your stacks of 10" fabric squares into quilts! The Cake Cutter ruler has all the measurements you need - lines for cutting, and slots for drawing diagonal lines. Square up blocks, make half square triangles, quarter square triangles, trim down blocks, sub-cut units... the Cake Cutter Ruler can do it all! Combine the Cake Cutter Ruler with a set of 10" squares from your favorite fabric line to make a quick and easy quilt!