The 3Mâ„¢ Ball Marker Makes the Job of Precisely Locating Underground Facilities Easier; Other Buried Markers can be Disturbed by Backfill Dirt or Installed Improperly So They Don't Stay Positioned Correctly; The 3M Ball Markers Unique Self-Leveling Design Ensures the Marker is Always in an Accurate, Horizontal Position Regardless of How it is Placed into the Ground

Specifications:

Item: ID Ball Marker
Type: Self Leveling, Programmable
Overall Size: 4 Inch Diameter
Finish: Blue
Used On Item: Underground Cable Locator
Used On Model/Brand: Dynatel