Manual Leveling Rotary Laser Level, Large & Small Scan Modes Achieve A Laser Chalk Line, Simultaneous 90 Degree Split Beam, Vertical Mode, Scan Line Can Be Moved Clockwise Or Counter Clockwise, Includes: Laser, 4 "AA" Alkaline Batteries, Tinted Glasses, Instruction Manual With Warranty Card & Soft Sided Carrying Case.