Feature●PREXISO Multi Surface Laser Level includes PREXISO multi surface laser level LED Light Vial, 30Ft Horizontal and Vertical Line Laser with Wall Mount Base, 2 Pins, 10 Sticker, 2 AA Batteries; PREXISO 135Ft Mini Laser Measure Including - Mini Laser Measure, USB changing, User Manual and Hand Strap. Class II laser product, output less than 1mW●PREXISO Multi Surface Laser Level - Accuracy Surface Laser Lines & Bubble Vials: PREXISO laser level projects horizontal and vertical lines on any SURFACE up to 30Ft, 2 laser lines are at an exacting 90° angle; It built-in bubble vials ensure more accurate leveling●PREXISO Multi Surface Laser Level - Simple Operation: Simple one-switch operation powers 3 laser lines on and off, projecting 3 level line onto surface; PREXISO allowing homeowners to start hanging pictures, mounting frames, home renovation easily.The angle dial is used for angle reference, easily change the angle you want within the range of 15°~75°; Angle dial & bubble vial designed with LED lights for easier reading in dark workspaces●PREXISO Laser Measurement Tool - High Accuracy: Measuring range ups to 135 feet to meet your regular measuring need, ideal for home, construction and industries; Using ASIC chip with High Accuracy: ±1/8 inch; Hold the UNITS button 3s to switch units among Ft/ Ft+In/ In/ M freely; Press UNITS to change measure reference while measuring●PREXISO Laser Measurement Tool - Multifunctional Measurement -There are 6 laser measure modes of our mini laser include Distance, Continuous, Area, Volume, Pythagorean Method-two Points and Pythagorean Method-three Points meeting you different needs, Calibration, Reference Change and Automatic shutdown without operation for 120s also assures you a easy and quick measurement to improve efficiencyDescription PREXISO Multi Surface Laser Level includes PREXISO multi surface laser level LED Light Vial, 30Ft Horizontal and Vertical Line Laser with Wall Mount Base, 2 Pins, 10 Sticker, 2 AA Batteries; PREXISO 135Ft Mini Laser Measure Including - Mini Laser Measure, USB changing, User Manual and Hand Strap. Class II laser product, output less than 1mW