45 degree 2.0” Slotted Ruler – There are 4 slots 2 inches apart at a 45 degree angle allowing you to stitch double line cross hatching accurately and quickly. There are etched lines for easily sliding the template and adding stitch lines for 1 inch cross hatching. Large Slot size. This template is sized for the Gammill Long Arm Hopping Foot. 3/8" thick template.