+3 Creative Grids Half Square 4-in-1 Triangle Ruler CGRBH1 C$29.99 In stock Quantity: 1 Add to Bag Product Details Create half-square triangles (HST) in multiple sizes using the same tool. Whichever technique is used in the pattern you choose can be completed with this ruler. The ruler slides easily over the fabric until pressure is applied. 5.5 x 10.5 inch Save this product for later Favorite