Multi-function laser level: Directional machine, laser jet, ruler and tape measure (8 feet) 4 in 1, designed for every situation where a straight line or measurement is needed. 3 levels of bridging: the laser level with a level , a block and a 45° bladder to determine the horizontal and vertical level. For more accurate results. Comes complete with 3 AG 13 button cell batteries to ensure you keep going with maximum convenience. COMPATIBILITY - Ideal for hanging pictures along a stairwell, hanging mirrors, installing curtain rods and other household items - The laser part can be separated from the set and used on its own - For indoor use only (ideal for father's gift). Easy to use: it is equipped with a selection button on the front. It controls the switching of vertical laser line, horizontal laser line and cross laser line mode and is suitable for different use modes, more accurate and more stable. 24 months quality warranty and CE certificate . Our spirit level is CE certified and therefore safe, reliable and environmentally friendly. If you have any questions about the use and the product, you can contact Orthlande customer service at any time. We will solve the problem within 24 hours. Note: 1. Please press the key button when you remove the tape measure, it would make the tape measure better and easier to use. 2.Please loosen the key knob to lock the spool when the tape measure has been stretched to your desired length. 3 line modes Designed for any situation where a straight line or measurements are needed. Leveling bubbles A three-position leveling bubble can provide more accurate results. Tape measure > Tape measure is 8 feet long and includes imperial and metric measurements with graduations up to 1/32” and 1mm Note: Data is all manual measurement, please allow an 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.