Features: The laser light has an on/off switch. Good 3-in-1 measuring combination with laser level, tape measure and leveling bubble of 3 kinds of direction (180° / 90° / 45°). Note: When the measuring distance is between 10m and 25m, the laser ranging error is "+/- 2mm. Note: If the laser is level vertical or horizontal, you do not need to adjust the beam. Note: Laser light fades when used in direct sunlight or outdoors. Features: Product size: 18.5 (L) x 6.2 (W) x 2.8 (H) cm Package size: 21 * 8 * 4 cm Black color Net weight: 184g Package weight: 260g Length of tape measure: 2.5m Original box: YES Note: For laser radiation, avoid getting into eyes. Improper use of the device can cause irreversible eye damage. A laser device is not a toy. Keep away from children. Any corrective measures aimed at increasing the power of the laser are prohibited. Please do not disassemble the case yourself, otherwise the warranty will be invalid. Usage note: Please press the button when removing the tape measure. As a result, the tape measure is better and easier to remove. Please loosen the knob to lock the spool when the tape measure has been pulled out to your desired length. The package includes: 1 x Laser Level (include 3 x AG13 button cell batteries) 1x User Manual Note: The data are all manual measurement, please allow error of 1-3cm; due to the difference in light and display, there would be a certain color difference, please refer to the actual object received.