Omnigrip RN2518 Non-Slip Quilter's Ruler, 2-1/2 x 18-Inch Description The Omnigrip 2-1/2" x 18" ruler is ideal for cutting short strips and sashing; it has an extra 1/2" for seam allowances. Features: Omnigrip rectangle rulers are used for cutting strips and trimming fabric edges during quilt making or when executing a variety of sewing and fabric craft projects Use with a rotary cutter or a straight-edge blade Patented non-slip backing to hold ruler in place during cutting Edge markings for accurate measuring and laser cut edges for smooth, deep cutting Patented double-sight lines that show up on light and dark fabrics Heavy-duty durable acrylic material Left- and right-hand numbering and angle system Product Details: Material: Acrylic Brand: Omnigrid Color: Clear Style: Rectangle Graduation Range: 1/8 Inches Product Dimensions: 18 x 2.5 x 0.1 inches Item Weight: 3.84 ounces Manufacturer: Prym Consumer Country of Origin: USA Item model number: RN2518 Is Discontinued By Manufacturer: No Batteries required: No