Designed for settingup 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, SKU: SOLALV025