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