Features: Wide Usage: This level tool designed for all the work that requires a straight line or accurate measurement, such as locations on a wall, space between hangers, level the nails, or indoor jobs like hang shelves, cabinets, tiles and picture frames with accuracy. 3-in-1 Function: This level level tool combines a 1.5m tape measure, an 8-digit calculator, a liner, a dual level, and a suction cup to make it possible for a person to measure the tape. It can perform ruler measurement, 45 degree angle reference and other functions. Portable: It is lightweight and portable, 10.5oz. So you can put it in your pocket or hold in your hand when working. Calculator: There is a calculator on the side to calculate the tilt angle, which can make your work more convenient and quick. It needs 2 * AAA batteries to use. (Battery is not included) 1.5m Retractable Tape: Equipped with a 1.5m retractable tape, it provides you more convenience for small items measurement. Specifications: Material: ABS Color: Grey Battery: 1 * 1.5V 160mAh Button Battery Package Size: 17 * 7 * 4.5cm / 7 * 2.8 * 1.8in Package Weight: 260g / 9.2oz Package List: 1 * Level Measuring Tool 1 * Suction