Omnigrip By Omnigrid Non-Slip Quilter's Ruler 20.5"X20.5"-

This non-slip ruler simplifies large size cutting tasks so you are able to set the most popular size quilt blocks without using any math! Made especially for quilting, sewing, and crafting projects. Can be used with rotary cutters or straight edge blades. This package contains one 20.5x20.5 inch ruler. Made in USA. 1 Pack of 1 Set