Adopt ABS and alloy material is sturdy and durable, not easy to rust, so can last for a long time. Widely used in industry, angle measurement, architectural design, carpentry, length measurement, and so on. Features -Color: Assorted. -Material: ABS, alloy. -Size: About 23.00X4.00X1.60cm/9.04X1.57X0.63in. -Measurement accuracy: 0.5°. -Measuring range: 0-999.95°. -Line length: 190mm/7 inches. -Resolution: 0.05°/3'. -Graduation value: 0.05°. - The full-screen large displays the measurement data, and the reading is simple and convenient. - Any position can be cleared, which is convenient for absolute and relative measurement. - We can easily carry and store this combinations ruler because of its compact design. - The flat back of the ruler body is convenient for marking and measuring. - This digital angle allows a full range 0-360° to measure internal angle, external angle, etc. Package list: 1 x 4 in angle ruler