Skyhawk Acrylic Quilting Rulers Combo Pack of 2 Quilters Rulers - Rectangular 24" x 6.5" and Square 9.5" x 9.5" Double-Colored Grid Lines TWO OF THE MOST POPULAR SIZES: RECTANGULAR QUILTING RULER - 24 inches x 6.5 inches (24" x 6.5") SQUARE QUILTING RULER - 9.5 inches x 9.5 inches (9.5" x 9.5") LONG LASTING - Made from durable 2.5 mm premium acrylic plastic. EASY ON THE EYE - 2 colors grid lines makes it easy to see on light or dark materials. GUARANTEED ACCURACY - Computer generated inch markings in 1/8", 1/4", 1/2", and 1" increments. These rulers were designed to give you ultimate accuracy when it comes to measuring; marking and cutting LEFT OR RIGHT HAND USE - feature left or right hand numbering & angle system. MULTI-USE - Perfect for quilting, sewing, or craft projects. Precision is easy with the Skyhawk Quilt Ruler! These versatile, easy-to-read rulers can be used to quickly trim accurate seam allowances, speed up half-square triangles and more! You'll get better results in a fraction of the time when you add these rulers to your quilting supplies.