A quilting ruler that is cute AND gets the job done! 4.5 inch square quilting ruler, a perfect size for trimming half-square triangles. Markings are every 1/8 inch, with a diagonal line at 45 degrees for easy half square triangle trimming. Laser cut and engraved from 1/8 inch acrylic. The markings are engraved so they'll never rub off. Non-slip dots provided with every ruler.