Dritz-omnigrid: non-slip ruler.The clear acrylic ruler has a special non-slip bottom surface to help keep the ruler still and in place when measuring or cutting.The markings are in inches with 1/8-inch increments.30- 45- and 60-degree angle lines are included in both directions for left- and right-handed crafters.Overall measurements are 12-1/2×2-1/2 inches.This package contains one ruler.Imported.