1.ABS plastic shell (light weight and durable). The power is automatically turned off after 5 minutes. Portable size, convenient to use with other measuring tools and expand the measuring range.2.Angle and slope reading conversion. The relative/absolute measurement can be interchanged in any position. There is a builtin magnet on the measuring surface, which can be easily attached to the measured object.3. Multifunctional digital angle meter with 3key function, including zero function and hold function (used to freeze readings), solid magnetic base (used for precise measurement and cutting), allowing you Carpentry, woodworking, construction and other tasks are easier. In addition to other metal surfaces, it can also be easily installed on miter saw blades, table saw blades and protractor tables to accurately set up your wood or machining workshop, and Keep it this way effortlessly.4. This sturdy Mini tool can also be used as an inclinometer, a protractor, and a level and bevel gauge, which can be used for multiple purposes within a 360 rotation range.5. The large, easytoread and highprecision LCD display with backlight can automatically reverse the number 180 for measurement, so that the work becomes easy and fast, the reading is fast and stable and the number will not jump, so you can faster jobs. quality control testing and worryfree portabilityDigital goniometer style: bubbleShape: squareWith backlight and magnetic base, without batteries (2xAA batteries)Weight: 158.8gGoniometer thickness: 2.8 cmsize: 5.6x5.6x3CMMaterial:ABScolour:BlackPackage Contents:1 x Digital Level BoxOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/ 13cm.