Omnigrid-folding ruler, 4×36 inches.The omnigrid 4×36 inch 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.Dual-sided marking make is great for left- or right-handed users.The 45 degree markings are handy for making long bias cuts.Fold it to store or travel.Omnigrid heavy-duty acrylic rulers have patented double sight lines, making the grid lines easy to see on light and dark fabrics.Made in usa.