Large and small scan modes achieve an accurate chalk line, Manual-leveling in horizontal and vertical planes, Simultaneous 90º split beam in vertical mode, Scan line can be moved clockwise or counter-clockwise, Variable rotation speed, Rugged housing, 40-6507 Kit Includes > Laser, wall/ceiling mount, 4 "AA" alkaline batteries, tinted glasses, instruction manual with warranty card, soft-sided carrying case