1、This product can shoots 2 laser lines for finer positioning. 2、Adopts large power high brightness light source, suitable for both indoor and outdoor use. 3、Double bubble-level design, used for plane or straight alignment accurately. 4、There are two suckers on the bottom of the level machine, which makes it can be sucked on the smooth wall and tiles to use, more convenient to use. 5、Suitable for work that requires precise alignment such as carpentry, stair starter, shelf, molding, tile laying and etc.. 6、Three colors optional, you can choose yellow, blue, red according to your preference. This quality laser level can shoots 2 laser lines for finer positioning. Double bubble-level design, used for plane or straight alignment accurately. There are two suckers on the bottom of the level machine, which makes it can be sucked on the smooth wall and tiles to use, more convenient to use. Suitable for work that requires precise alignment  such as carpentry, stair starter, shelf, molding, tile laying and etc.. You can have a try. Features: This product can shoots 2 laser lines for finer positioning. Adopts large power high brightness light source, suitable for both indoor and outdoor use. Double bubble-level design, used for plane or straight alignment accurately. There are two suckers on the bottom of the level machine, which makes it can be sucked on the smooth wall and tiles to use, more convenient to use. Suitable for work that requires precise alignment  such as carpentry, stair starter, shelf, molding, tile laying and etc.. Three colors optional, you can choose yellow, blue, red according to your preference. Specifications: Name: Right Angle Ground Wire Instrument Material: ABS Color: yellow, blue, red (optional) Battery: 2 * AAA battery (not included) Working distance: 16m Laser wavelength: 650nm Resolution: ±1mm/m Item size: 190 * 106 * 45mm / 7.48 * 4.17 * 1.77in Item weight: 130g / 4.59ounce Package size: 190 * 106 * 57mm / 7.48 * 4.17 * 2.24in Package weight: 180g / 6.35ounce Packing List: 1 * 90° Laser Level 2 * Suckers 1 * 90° Laser Level 2 * Suckers