Sew together twelve 30 degree triangles to create a complete circle, six to create a half-circle, or three to create a quarter-circle. Create fans, Dresden Plates, etc. up to a finished size of 38 inches. Use the vertical lines to fussy cut stripes or cut half triangles (the 0.25 inch seam allowance is marked). Or cut 30, 45, and 60 degree units with the angles marked on the ruler.
The ruler slides easily over the fabric until pressure is applied. Then, our exclusive gripper holds the fabric in place while cutting, eliminating slipping and miss-cuts!