1. Laser type: Green crosshair laser element, Class II, < 1 Mw. The green laser line is brighter than the red laser line and can be used indoors or outdoors. It is very suitable for paving roads, windows, or hanging pictures - anywhere you need to level or align. 2. Automatic leveling. The laser can be leveled even on uneven surfaces (with an angle of no more than 4°). 3. Easy to use: One button to turn on/off the cross laser line (90 degrees). The laser level can project horizontal and vertical lines on any surface up to 98 feet away. It can be used anywhere that requires leveling or alignment, such as tiling/wallpapering, installing shelves or windows, hanging pictures/paintings/appliances. 4. Included components: 1 * Green laser level, 1 * Magnetic mounting bracket, 1 * Manual, 1 * Laser target card, 1 * User manual.