The Spectra Precision Laser LL300 is your medium-range, high-accuracy solution. Ideal for basic slope work such as driveways and ramps, checking or leveling elevations, concrete forms, footings and foundations for small- and medium-sized jobs, and for excavations, digging footings and septic tanks. Application: For all of your small to medium range leveling and slope work, Kit Includes: 1 LL300 Laser, 1 HR350 Receiver, 1 C59 Rod Clamp, 4 Alkaline Batteries, Manuals, and 1 Plastic Case