CST/Berger 06-TLMB Cut/Fill Laser Rod 8-Feet/2.5m with Vial Color-coded rod: Red for -Inch too high-Inch, silver for -Inch too low-Inch Spring-loaded bottom shoe for easy extension Supplied with receiver mounting bracket For use with lasers and leveling instruments, transferring and measuring heights and height difference and ideal for setting up ceilings and floors Length: 2.4, Sections: 2.0, Units of Measure: Metric