Protractors features: This digital angle finder protractor is high-accurate, with modern appearance design. An interior designer should have one It is a digital angle measuring device whose read is easier and exact than other scale indicated angle level. It is mainly intended for applications which involve lineation for woodworkers, measure and definition of the exact angles such as trays, sloping roofs and handrails. Features Color: Black Material: ABS Size: 15.10 x 5.90 x 3.20cm/ 5.93 x 2.32 x 1.26 inch Digital inclinometer has portable size, it's convenient to carry and co-work with other measuring tools and enlarge measuring range. It is compact and very much affordable, lightweight design, exquisite appearance, and easy to use Clear and bright display allows you to use this device in the dark without light. With high accuracy, delicate design and modern appearance, an interior designer should have one It also can be used like a spirit level, helping you to check and calibrate.