Feature: 1. HIGH VISIBILITY: Our green beam level adopts upgraded chip, which can provide maximum line visibility up to 100 feet, twice brighter than red laser, fully meeting indoor and outdoor projects needs. 2. SELF LEVELING: The level tool will self leveling within 4 degree of plane deviation, allows to be used on any plane within 4 degree of horizontal or vertical. If it exceeds 4 degree, the laser will flash as a warning. 3. 3 MEASUREMENT MODES: The level can send out 2 lines, with 3 measurement modes, horizontal, vertical and cross lines, with the measurement range of 5m. 4. ONE KEY CONTROL: One key control makes laser line leveler operation more convenient, saving you a lot of time and making your work easier, ideal for tile alignment, studs, window, doors, etc. 5. WIDE PURPOSE: The level is small and compact, very suitable for small DIY projects, such as picture frame hanging, rack installation, etc., can also be used for construction projects. Specification: Item Type: Laser Line Level Tool Material: ABS Measuring Range: Approx. 5m/196.9in Measurement Error: ±1mm Laser Wavelength: 635 (nm) Power Supply Mode: 2 x AA dry batteries (not included). Package List: 1 x Laser Line Level Tool1 x Storage Bag1 x Manual Note: Please note that the switch color of this product is random.