Angle Finder, Number of Quadrants 4, Lens Material Acrylic, Lens Diameter 5.88 in, Measuring Range - Maximum 90 Degrees , Measuring Range - Minimum 0 Degrees , Number of Level Vials 0, Material Plastic, Color Orange, Features Durable High-Impact Molded, Easy-to-Read 0-90 Degrees Increments, Extra-Strong Ceramic Magnet, Ruled Edges with both Inch and Metric Graduations, V-Groove Edge, Graduation Units Inches