Angle finders, molded of high impact plastic and allows users to read any angle instantly and accurately. Read any angle 0° to 90°, instantly, in any quadrant. Not affected by magnetic fields, cold or heat. Built-in magnetic base and V-grooved side for steadying on flat and round surfaces. Offered in two dial face sizes: 2 ¾” dial face (DT100M) & 4” dial face (DT700M). Made in USA