The Omnigrid 4" x 36" folding ruler offers full size functionality in a convenient folding design. Fully extended, the ruler is long enough to cut folded bolted fabric or trim finished quilt tops. The longer length works well with Home Décor projects and wider fabric. The 45 degree markings are handy for making long bias cuts. It can be folded to store or travel. It has edge markings for accurate measuring and laser cut edges for smooth, deep cutting. The patented double-sight lines show up on light and dark fabrics. It is made from heavy-duty durable acrylic material with a left- and right-hand numbering and angle system.Details:4" x 36"Laser cut edgesDouble-sight linesAcrylic