Cutting Ruler SET, Rectangle TRIM IT, BLUE by Lori Holt Cute Cuts (with self grips) 221 sold (The photos shown are of COL SCAB 201GB (The photos shown are of the title book you will receive To Prepare the Ruffler for Shirring Remove the separator blade from the Ruffler by loosening the screw at the right side of the attachment sufficiently to release separator blade holder to which the under blade is attached This square up cutting ruler set was designed by Lori Holt of Bee In My Bonnet and is perfect for trimming rectangular quilt blocks sized 1 1 2" x 2 1 2" The four rulers have aqua blue markings printed in 1" grids marked in 1 8" and 1 4" increments