[Wide Application] Angle finder is widely used for sketching, drawing, construction, DIY projects, woodworking, decoration and more. Great gift for dads, men and women who work in woodworking, construction, engineering. [With Locking Knob] The angle ruler has a locking knob, which is convenient to lock angle at any position, making measurements more accurate. Hold button can hold the measurement at any angle, which helps you effectively record the angle values. [4 In 1] The multifunctional angle finder has metric and imperial measurements on ruler edge, with accurate digital data, which can measure both angle and length. Horizontal and vertical bubble level also help you to check and calibrate. [LCD Display] Digital protractor has equipped with a large easy-to-read LCD display, large digital numbers is easy to read. The angle ruler allows a full range 0-360 to measure internal angle, external angle and more. [Durable Material] The angle ruler is made of high-quality ABS material, with good rigidity, not easy to deform and break, durable and has long service life. Compact size and lightweight make it easy to use and carry. Product description Parts List: 1x Angle Ruler Specification: Product name: Angle Finder Material: ABS Size: 23 x 3.4cm/9 x 1.3 inch Application: sketching, drawing, construction, DIY projects, woodworking, etc Note 1.Battery is not included, please prepare battery before use. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Please allow slight dimension difference due to different manual measurement. Thank you for your understanding.