Characteristics Relative or Absolute Angle Measurement - The regular absolute measurement mode measures angles relative to a horizontal plane. The tool also features a relative measurement mode to quickly measure the angle between two surfaces being measured. Powerful Magnet V-Groove Base and Hold Function - The V-groove base with a powerful magnet holds securely to curved or cylindrical magnetic surfaces such as metal pipes or shafts. The hold function helps save the current angle on the display. Wide range of applications - ideal for use in the automotive, wood and machine industries, machinery, medical and more. Product Name: Electronic Level Product Material: Aluminium profile Product Size: 5.9*25.4cm Colour: red Packing list (available after purchasing one product) Level*1 Please understand: 1.Due to the long shipping time, the item may be damaged during shipping. If the item is damaged, please leave us a message through the official website immediately and then post a comment, I will solve the problem for you. 2. Due to manual measurement, the size may have 1-3cm error. 3. Colour may vary by monitor.