Designed for setting up to three tiles simultaneously with two project crosshairs. Crosshairs project to the front and to the rear, a patent pending feature. User can tile a whole room without moving the laser. Feet sit up to 2 inches off the ground so tile can be set under the laser. Feet also adjust for uneven surfaces. Accuracy of 0.3mm/m (lateral deviation) or 0.017°. Operating range is 30 ft. per line. Made in Austria.