This Right Triangle Half-Square Ruler is perfect for creating half-square triangles for finished quilt blocks up to 8 inches. It is easy to manipulate for smaller triangles as well. It also features a highly visible grid and smooth edges for a clean cut.

• 8-inch half square
• -inch seam allowance calculations included in measurements
• Made of heavy duty acrylic material
• Best used with a rotary cutter or straight-edge blade