Creative Grids 45 Degree Kaleidoscope Double Strip Quilting Ruler Template CGRDBSKL Use the straight side of this double strip ruler to cut 1-1/2 and 2-1/2 inch strips 1/2 Square- Triangles, 1/4-Square-Triangles, 60 degree Triangles, Trapezoids and more from strips of fabric. Sew these strips together to create a 4-1/2 inch wide strip set. Turn-a-Round the ruler to cut five 45 degree kaleidoscope triangles that finish 4 inches. Gripper holds the fabric in place while cutting, eliminating slipping and miss-cuts! Comes with fully illustrated step by step instructions or scan the QR Code printed on the ruler to view a video demonstration.