• Ideal for quilters working with 12in blocks • Perfect for squaring blocks to 12 1/2in before final assembly • Essential tool for precise quilting

This Omnigrid ruler is great for quilters who mainly work with 12in blocks. You can use it to square your blocks to 12 1/2in right before the final assembly. It measures 12 1/2in by 12 1/2in, making it a handy tool for your quilting projects.