Features: High-quality material: Made of high-quality material, it is wear-resistant and not easy to break, can be used for a long time, and has excellent workmanship, giving you a good use experience. Dual function: This transparent digital ruler combines two functions: right-angle marking, and internal and external angle measurement, making it easy to use. Digital display: This digital transparent ruler adopts a large-screen digital display design, which can quickly and accurately read angle values. Precise Measurement: Provides precise angle measurement within 0-200mm range. Transparent construction allows for easy alignment on any surfaces. MULTIPURPOSE: Suitable for woodworking, metalworking, engineering and DIY projects. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: plastic transparent ruler body Accuracy: 0.05° Measuring range: 0-360 degrees Specifications: 0-200mm Power supply: 1 external 3V CR2032 button battery Purpose: right angle scribing/internal and external angle measurement Package List: 1 x Transparent Digital Angle Ruler